Modern Marvels: Defending Impenetrable Forts and Strongholds | Full Episode | History

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NARRATOR: This is a concertainer, a modern day military field fortification. It can be assembled on the battlefield in several hours. The concertainer was first used in the Gulf War as a British field fortification. The densely-packed walls are designed to withstand direct fire attack. The concertainer represents the culmination of an art that has evolved over thousands of years. It is the fortified castle of the new Millennium. You often hear people talking about impregnable fortresses. It's a myth. There is no such thing as an impregnable fortress. Any fortification can be taken if the attacker is willing to pay the cost. And that's a cost in lives, a cost in equipment, and a cost in time. The whole object of fortifications is to make that cost higher. NARRATOR: Fortifications are ubiquitous throughout every society in recorded history. The earliest ones were very simply designed hill forts. Prehistoric man would put a crude fence of branches or bits of wood around his animals to form a stockade. Usually, these forts would be situated on a hill to make it more difficult for an intruder to arrive unnoticed. But while the walls were a deterrent, they were not strong enough to hold off any determined attacker. Wooden stockades are fairly fragile structures. You can knock them down fairly easily. They rot. They catch fire. All sorts of bad things happen. So where it was available, people worked in to start building walls out of stone. NARRATOR: Throughout history, many important events have taken place around a fortress. The first evidence of a city protected with stone walls was found in the Near East. The City of Jericho controlled that area because of its strategic location along the Jordan River. The original walls of this desert oasis are believed to date back to 8000 BC. The 3,000 inhabitants built freestanding, large, stone walls that were 6 feet thick and 23 feet high. There was a tower in one of the walls and a stairway. The famed Bible story picks up at the beginning of the year 1300 BC, when the Israelites entered Palestine and sent Joshua to claim Jericho. For six days Joshua walked around the perimeter of Jericho with trumpets blaring. And on the seventh day, as the saying goes, the walls came tumbling down. The construction of stone fortresses became more sophisticated throughout the ancient world. And so did the methods for breaching those walls. They had had battering rams. They had movable towers that they could move up against the walls of the forts to allow the attacker to get over the top of the walls. So again, we see this constant struggle between the defender and the attacker. NARRATOR: The city of Troy in Anatolia was a strategically located city in the Near East that guarded the entrance to the Black Sea. The Greeks were unable to penetrate the walls. So in 1184 BC, they devised another method to conquer the fortress. The Greeks did not have very sophisticated siege equipment. They just had standard personal weapons. So all they could try and do was climb over the walls. And that's a hard thing to do against any well-built fortification that has a good garrison. NARRATOR: According to the Greek writer Homer and the "Iliad," the city of Troy had steep, 20-foot high walls. It was believed to be impregnable. But the Greek General Ulysses hid his men in a huge wooden horse that was offered to the city as a gift. The gift was accepted, and the Greeks conquered Troy. As Ulysses proved no fortress is absolutely impregnable, this was the cold reality that faced Herod, the King of Judea, in 35 BC. Herod was aligned with the Roman Empire. But he began to fear that Cleopatra coveted Masada, the gateway to Egypt and Africa. The name Masada comes from the Aramaic word [non-english],, which means fortress. So Herod reinforced Masada, building a massive casemate wall. That's a wall that's made out of two walls with a space in between. And the space in between was about 8 feet wide. And there, there were rooms and places for guards and guard towers. And there were towers around the whole wall. And then he built two palaces. NARRATOR: Masada's location, rising 1,300 feet above the Jordan River, made it seemingly unapproachable. During Herod's residence, no battles took place at Masada. But later, in the year 66 AD, a small group of Jewish zealots claimed Masada as their stronghold. It was the last bastion against the Roman army, who came back to conquer it in the year 72. The Romans were determined to unseat the zealots from their stronghold. After six months of preparations, Flavius Silva led his men in an attack against the fortress. And then he brought up what's known as a siege machine, which is a iron-plated wooden structure from within which archers could fire into Masada, the walled fortress. And while that was going on, the way that they cover themselves were with catapults. And hundreds of grapefruit-sized stones were found on the top of Masada. NARRATOR: The Romans started shooting flaming arrows, which ultimately set fire to the inner wooden walls of the fortress. This spelt doom for the 967 zealots on Masada. [inaudible] brought together the zealots and said, God has shown us that the tide is fatally turned against us. But we're not going to become slaves to the Romans. We got into this fight because we serve no one but God. Therefore, we will only allow our deaths to be by the hand of God. What he meant by this was that they would commit suicide. NARRATOR: According to the Jewish historian Josephus, the men killed the women and children first, and then themselves. With the Israelites completely in their control, the Romans continued to expand and contain their empire through the use of precise, strong fortification techniques and sophisticated siege methods. Their status as a dominant world power would last for several hundred years. In the year 120 AD, the emperor Hadrian ordered the building of a series of walls and forts to divide Roman Britain from the unconquered Northern Territory. It was built as much to keep the Britons in as to keep invaders out. Hadrian's Wall is a quite sophisticated fortification. It's a stone wall. It's approximately 20 feet high. Runs the entire with the Britain from the North Sea to the Irish Sea. There are, every mile, things called mile castles, which were small posts occupied by full time garrison. Between these were lookout towers. And then, periodically, spaced wider out were large fortified camps, all permanent fortifications built the last. NARRATOR: But Hadrian's Wall did not prove invincible in its day. It was besieged by attackers outside of Roman control. And this, coupled with weakened imperial authority in Rome, contributed to the end of the Great Roman Empire. Well, like every empire, every world power, they basically weakened over time for a variety of reasons-- corruption in the government, lack of energy, as it were, on the part of the population. NARRATOR: The fall of Rome in 400 AD brought about the Dark Ages. And the art of fortification all but disappeared. In 1066, William of Normandy crossed the English Channel from France and quickly overtook Britain's defenses. To secure his position, he began building a chain of castles. These castles were populated by individual lords and barons who ruled their immediate surrounding territories. The number of Norman castles grew into the hundreds. Over the next 200 years, a more stable, centralized society developed. And the techniques of castle building and the purpose of the castle matured as well. In the British Isles, they became known as the bones of the kingdom, the King's fortresses. During the Middle Ages, the castle evolved as a-- the preeminent example of a defensive structure that could be used as a pivot in warfare. NARRATOR: The castles were constructed of quarried stone and bound with a mortar made of sand and lime. Hundreds of craftsmen worked on the structures. The elaborate designs included an outer curtain wall, which was maculated, or indented, with merlins through which the defenders could fire their weapons and then duck for cover. The castles were equipped with protruding towers at the corners so that all sides of the curtain wall could be covered. And at certain points along the wall were [non-english],, or murder holes, through which the defenders could drop lethal objects like boiling oil upon the attackers if they succeeded in getting through the gate. In the 13th century, Edward I built many castles in Wales to protect England's interests there. And you particularly began to see that in the 12th and the 13th century, castles become much more sophisticated, much more powerful. You also see towns beginning develop. And towns become more important. And because it's still not a very settled time, you needed fortifications to protect those towns. NARRATOR: The world has become a walled fortress. The Great Wall of China, which was begun in 214 BC, covered 1,400 miles of mountainous terrain. The wall was 40 feet high in places and had 12-foot towers every 200 paces. Built to keep out foreign invaders, it was finally abandoned in 1368. In 324, Constantinople became the new Rome, the seat of the Holy Roman Empire. This great walled city stood as the center of Middle Eastern civilization for more than 1,000 years until it was conquered by the Turks in 1453. It was a new technological advance that signaled the downfall of the mighty fortress, the invention of gunpowder. Essentially, gunpowder made the castle obsolete. It took a long time to reduce a castle by siege. When gunpowder came along, this was all changed. An adversary could put in place a cannon and knock down a wall in a matter of days rather than taking months. NARRATOR: Cannon fire posed a major problem for castle defenses. The greater the height of the walls, the better the target for the attack. Fiery missiles would crack the stone walls, weakening them to the point where they would eventually fall. Privately-owned fortresses were soon to be a thing of the past. And the design and construction of fortifications became the sole domain of military engineers. And the main thing-- the main approach that was taken was to lower the walls, to sink the walls into a ditch. By doing that, you put the outer edge of the ditch between you and the artillery. You cannot be hit directly. So you're much safer from gunpowder artillery. NARRATOR: In the 1600s, Sebastian de Vauban was known as a master of siegecraft in the French army. He perfected a method of attack called sap and parallel. Attackers would dig trenches in a zigzag method up to the walls of a fortification to protect themselves and enable their cannons to hit their targets from a closer vantage point. The fortresses built from scratch built in open terrain were basically star shaped. And they could have anywhere from seven or eight bastions. And they were built symmetrically because you wanted every point of a fortification to be equally strong. NARRATOR: The Vaubanian star-shaped fortress that had worked so effectively in Europe migrated to North America with the Spanish and French settlers. This elaborate design was also used in 1755 in the construction of Fort Ticonderoga in the state of New York on Lake Champlain. Built by the French, it played a role in the French and Indian War. It was taken by Ethan Allen and Benedict Arnold during the American Revolution. The Americans held the Fort until July of 1777, when General Burgoyne and his British redcoats took it back. With Ticonderoga defeated, George Washington decided to fortify another strategic location-- West Point. It was essential to get men and material between the New England colonies and those to the mid-Atlantic colonies in the South. Whatever industrial capacity we had was in New England. The grain was in the West. It was essential that those two segments of the population could be brought to bear to defend the country. NARRATOR: West Point, New York is made up of rocky promontories on one side of the river, and Constitution Island on the other. The river makes an S-shape turn at this juncture. And that became another crucial reason for fortifying the area. What this meant was that any British ship coming North would have to slow down considerably going through the S turn. And the river also was narrow at this point, only 400 yards wide. That meant that the entire river could be covered with fire at a point where the British ships would be going the slowest. NARRATOR: The Continental Congress voted to fortify these highlands in 1775. The first man they chose to design the structures was a Dutch botanist named Bernard Romans. The selection of Bernard Romans as the first engineer at West Point in some ways highlights the absence of trained professional officers. The Continental Congress did not have anyone to turn to to entrust with this very large project, and were forced to turn to, basically, the first individual who said he could do it. NARRATOR: Romans' plan for West Point became a costly and ill-fated endeavor. And because he had no military experience, he didn't understand the difference between simple principles, such as grazing fire and plunging fire, and emplaced his cannons high up on the hill, where they would actually have a very hard time aiming down and shooting at the British warships. NARRATOR: Romans' batteries were abandoned in October 1777, but General Washington did not give up on his plan to fortify West Point. In early 1778, Washington brought Thaddeus Kosciuszko, a Polish military engineer, to West Point to begin a second phase of fortifications. He looked at the rocky lay of the land and came up with the idea of building field fortifications in key locations and many forts, called redoubts, along the river. This became Fortress West Point. A Fortress West Point consists of several forts, a number of redoubts on both sides of the river, and taking advantage of the difference in elevations. Kosciuszko was a master in utilizing the differences in terrain. NARRATOR: Washington felt confident that the Fortress at West Point would buy him time in the Hudson River area. But what he didn't count on was that his commandant would try to betray him. Benedict Arnold was becoming disillusioned with the revolution, and saw no way to achieve absolute victory. At West Point he began making plans to provide the British with military secrets. He passed the information to John Andre, a British go-between. He began to let their Fort and redoubts begin to decay, not keeping them up so it would make it easier for the British to attack. And if he had been successful, if the plans had gotten to the British, there's no doubt, with a traitor in command of West Point, the British could have been successful. NARRATOR: But the British never did get the plans. Major Andre was apprehended before delivery. And Benedict Arnold was accused of treason. West Point was never attacked by the British due, in part, to the new interdependent system of forts devised by Thaddeus Kosciuszko. This may have been simply an ad hoc series of solutions to a series of problems and not a grandiose scheme to actually come up with a revolutionary new system of fortifications. This is reinforced by the fact that, after the American Revolution, you see a decline in the use of a series of fortifications and the return to the idea of one main fortification, which would lead to the building of Fort McHenry. NARRATOR: Fort McHenry was a coastal fort built to defend the city of Baltimore against a British sea attack during the War of 1812. It was here that Francis Scott Key wrote the "Star-spangled Banner." Like Fort McHenry, the purpose of Fort Pulaski was to defend the port of Savannah against foreign invaders. It was in this environment because of its strategic location in the middle of the Savannah River that Lee and the administration of President Madison decided that they should build a fort here that can best protect the port city of Savannah, protecting not only the city, but of course all the commerce-- the rice that was cultivated along the coastal areas, the cotton, the pitch, the tar, the pine. All these things were very important commodities. NARRATOR: Because of Cockspur Island's marshy grasslands, Fort Pulaski had to have a special foundation to support its enormous weight. It sits on pilings that go 81 feet into the ground. And on top of the pilings are what's called grillage. Grillage is nothing more than a fancy word for-- for a large platform. And on that platform, on those pilings, sit this fort. NARRATOR: Fort Pulaski is pentagonal shaped. Its walls are 7 and 1/2 feet thick, constructed out of 25 million bricks that were made by local slaves. The fort took 18 years to build. In December of 1860, federal troops took over Fort Sumter in Charleston, South Carolina. And the war between the states began. In January of 1861, the Confederate States of America seized Fort Pulaski and began arming it for battle. In the meantime, the Union Army, led by engineer captain Quincy A. Gilmore, was building a series of field fortifications and artillery batteries on Tybee Island, a mile away across the Savannah River. By April of 1862, they had painstakingly constructed 11 artillery batteries containing 36 cannons and mortars, all aimed directly at Fort Pulaski. Gilmore decided to try out a new type of unproven rifled artillery for the assault. And that proved to be the death knell for Fort Pulaski. Well, the point in history, or the technology, is a new type of cannon that would make this Fort, and all others all over the world, obsolete. NARRATOR: On April 10 1862, Gilmore launched his assault. Soldiers on both sides were surprised by the performance of this new rifled cannonball. It could hit targets precisely over a mile away. Ribs in the projectile allowed the blast to propel it on a faster, longer, and more direct trajectory. The Union fired over 5,000 shots in about 30 hours before Colonel Charles Olmstead surrendered. The precision of the cannon fire had succeeded in breaching two walls of Fort Pulaski. After the battle is over, only 14 people were injured in the Fort. One would die at the time and one apparently later on. Over on Tybee, there was not one single person wounded, and only one man killed. So for a Civil War battle, it was relatively bloodless. NARRATOR: Hidden among the groves and hillsides of Eastern France lies what remains of the greatest defensive barrier constructed since the Great Wall of China. Built by the French between the First and Second World Wars, The Maginot Line fulfilled the goals of its creators. And yet, the French suffered a crushing defeat within weeks of open conflict with their enemies, the Germans. The line survives largely in ruins. And yet, it barely saw any direct assault on its defenses. For over half a century, historians have debated. Was the Maginot Line a horrendous failure or a thorough success? Conceived as a direct response to the devastation wreaked upon France at the close of the First World War, it became equal parts technology, desperation, and myth. But it began as a limited series of defensive fortifications in Alsace-Lorraine near the German border. Built to forestall a German invasion, it soon grew, at least in the minds of some, into an impregnable barrier over 500 miles long, extending from one end of France to the other. The Maginot Line consisted of reinforced, subterranean concrete fortifications, linked by firepower with large underground galleries, some containing railroads that carried ammunition and troops, plus sophisticated, powerful weapons and communication centers, all designed to conserve manpower and keep Germany out of France. Throughout the countryside, medieval towns and villages are surrounded by walls designed to keep attackers out and villagers safely in. But fortifications have their drawbacks too. One of the problems with any sort of extensive system of fortifications is you have to defend them all, and you have to defend them all equally. Otherwise, your attacker is going to go through your weak spot. So this means you have to spread out your defenders. And this gives somewhat of an advantage to the attacker because it allows the attacker to attack you-- concentrate his strength while you have your strength spread out. NARRATOR: Trench warfare became a cornerstone in French plans for their future defense. The logic being that the trenches had held, which, in actual fact, they didn't, as we all know. But the French like to believe that flimsy trenches, which were cheap, and bits of barbed wire and lots of machine guns, you know, could keep the country safe. Whereas, others proposed a limited number of fortifications. Of course they were busily ignoring advances in aviation and artillery. But then it's a well-known saying that generals always fight the last war. NARRATOR: The French knew that, ultimately, the Rhineland would be reoccupied by Germany if the Allies remove themselves from this buffer zone. If the Germans reoccupied the Rhineland, France would be vulnerable. At least along its borders with Switzerland and Italy, the Alps were a formidable barrier . In the North, Belgium was an ally. And in the East, the Rhine River and Vosges Mountains provided some protection. But the Rhineland was perceived as an open door. And the French endeavored to close it by undertaking a massive program of fortification construction along the Franco-German border. In the 1920s when they went-- made the decision to go ahead and build a system of fortifications, the war minister set up several commissions. And about 1927, they set up something known as the CORF, which, in English, refers to a commission for the organization of fortified front. And what the CORF did was prepare the designs that were going to be used on all the fortifications. NARRATOR: CORF drew up the plans in the late 1920s. But the push to fund the construction of the defenses began with Paul Painlevé, who was then minister of war. Painlevé was succeeded by a former war hero named André Maginot, but Maginot had nothing to do with the design of the barrier. Shortly after having initially secured nearly three million francs for the defenses, tall, solitary André Maginot died. Three years later, a newspaper referred to the Eastern defenses as the Maginot Line, and the name stuck. The whole objective of the Maginot Line was to delay a German attack into France. Not to stop the Germans were attacking, but to make it very difficult for the Germans to attack, and to be able to use this defensive position as something behind which they could mobilize a field army and defend themselves and be prepared to launch counter-- counterattacks. It basically was intended to offset the population difference between France and Germany. NARRATOR: But the purpose of the line would slowly shift. As the decade moved on and as the pressure for reducing military service increased and when it became clear that one, the Rhineland was going to be evacuated and probably ahead of schedule, two, the army was going to be reduced-- the length of military service would be reduced to one year, the function of the fortifications shifted to being an effective substitute for a reduced army. And that's really the crucial question of how to think about the fortifications, how to fit them into larger military plan. NARRATOR: With this in mind, the French military drew up plans for the Line. And construction officially began in 1929. The Maginot Line would consist of a series of large and small defensive positions, linked together and specifically designed to make use of the natural landscape. Built by local contractors, construction was coordinated by CORF through the war ministry, and continued throughout the early 1930s. Ultimately, the Maginot Line contained about 1 and 1/2 million cubic meters of concrete-- nearly enough to fill California's Rose Bowl twice-- 150,000 tons of steel, and 450 kilometers of roads and railways. It's made up of a series of defensive positions connected together by anti-tank obstacles and by barbed wire. And there are defensive positions that fire along these lines so that if any attacker tries to come through them, they're going to be taken in the flank and be under fire continuously from wherever they go. Periodically, this Line is strengthened by stronger works called ouvrages which is literally "work" in French. NARRATOR: The basic components of the ouvrages were massive concrete combat blocks sunk low into the ground so that they were concealed from view as much as possible. The roofs of these were, in some cases, up to 10 and 12 feet thick of reinforced concrete. Each one had its own type of armament, normally. That might be a 75 millimeter gun turret. It might be a 135 millimeter Howitzer turret. It might be an 81 millimeter mortar turret. Or it might be what was called the casemate block. And these were, instead of guns being in turrets, were guns mounted firing through embrasures in the wall of the block. NARRATOR: Ouvrages came in two sizes-- petite and gross. Gross, or large, ouvrages had combat blocks that were armed with both infantry weapons, such as machine guns and anti-tank guns, and with artillery pieces. The combat blocks of petite, or small ouvrages, were armed only with infantry weapons. There were ultimately about two dozen gross ouvrages and three dozen petite ouvrages in the Line. Deep beneath each ouvrages, deep enough to resist enemy bombs and bombardment was a network of tunnels and galleries that connected the blocks together and contained the ouvrages' support facilities. These facilities were decentralized to prevent catastrophic damage from a single direct hit. The layout of the galleries in the gross ouvrages was basically treelike, in that you've got a root system, which is near the entrance block, anywhere from up to a half mile to the rear of the main work. NARRATOR: Underground galleries containing barracks accommodations, a power plant capable of sustaining the ouvrage, and the main ammunition supply were located near these blocks. And then running from the roots to the crown of the tree where the combat blocks were was one long gallery. And through this gallery there was a train called the metro, after the Paris underground system. And this is what a lot of people have heard about. There really was a train. It was electric powered. And it was used primarily to haul ammunition. The troops mostly had to walk. NARRATOR: The combat blocks each had smaller underground galleries connected to the main gallery. These galleries included secondary magazines, small rest areas for troops, elevator shafts that lifted ammunition and supplies to the combat blocks. Combat blocks were usually two-story structures, with weapons mounted on the upper level and ammunition and air filtration equipment on the lower level. Air inside the works was kept at a higher pressure than air outside so that gas could not come in through openings. Large filtration systems were designed to filter out any poison gas. Ammunition, equipment, and supplies were brought to the line by trucks or special 24-inch gauge military railroads, the same gauge as that used by trains inside the gross ouvrages. Diesel engines pulled small cars carrying ammunition and supplies into the munitions entrance blocks, where they were switched over and hauled by electric locomotives in the galleries. The fort contained large amounts of ammunition. And provisions were made for supplying that rapidly to the combat blocks because combat blocks-- although they were small in number and didn't have many guns, they had very rapid firing guns. And they could burn a lot of ammunition in a hurry. NARRATOR: The Line kept a low profile along the surface. The exception was the fixed, unretractable steel dome called a cloche, which means "bell" in French. Over 1,500 were built, each large enough to hold one or two men. The cloches served many purposes, including observation and close in defense. Sitting on the surface like giant steel mushrooms, cloches were made of very thick metal. They were very strong, armor up to 10 inches thick. But it turned out that that wasn't really quite thick enough because the Germans came up with the 88 millimeter anti-aircraft gun, which, although it couldn't penetrate in most cases, could certainly do enough damage to give the people inside a real headache. NARRATOR: As construction continued, the scope of the Line was extended South along the Rhine River and West toward the English Channel. But the funding for the extensions was not on the scale that André Maginot had secured for the original Maginot Line before his death, and was inadequate for the expanded system. Ironically, as the Germans began to learn more about the Maginot Line, the French seemed to understand it less. In 1936, as the initial construction effort on the Maginot Line was nearing completion, Hitler gave France a dress rehearsal for war. Other events were taking place in the world of politics that would have an impact on the construction and usefulness of the Maginot Line. France had always assumed Belgium would be its ally to the North, and thus hadn't extended the Line to the English Channel. In fact, construction of the Line had implicitly anticipated this partnership, allowing the French to concentrate their forces away from the Maginot Line, and towards wherever an attack was most likely. Now, where did they want to concentrate them? They wanted to concentrate them on the northern frontier. And for a good long while, what they really would have liked is to concentrate them and to cooperate with the Belgians so if there was a next war, it wouldn't be fought in France. It would be fought in Belgium. And after the Germans remilitarized the Rhineland in 1936, the Belgians backed out. Why should they cooperate with the French in using their territory as the main theater of operations? They were in a very, very difficult position. NARRATOR: In 1936, Belgium declared its permanent neutrality. And suddenly, France had a huge exposed flank all along its border with Belgium. Beyond the dense Ardennes Forest toward Dunkirk, the landscape posed insurmountable problems. The region is heavily industrialized along the border with Belgium. In addition, the land close to the coast has a high water table, making underground galleries infeasible. Finally, no natural barriers exist along this flat plain. France decided it would deploy soldiers along that border as a defense. At the same time that France began construction of the Maginot Line, it began an extensive program of fortification construction in the Alps along the border with Italy. The difficult landscape provided better defensive positions. Although these fortifications were not necessarily as dense as those in the Maginot Line proper, they were similarly built. And their location often gave them a considerable advantage over an invading enemy. In 1939, the border between France and Germany was a taut line stretched across Europe. As the decade drew to a close, so did any chance for peace. MAN ON RADIO: Britain went to war against Germany today, 25 years and 30 days from the time she entered the War of 1914 against the same enemy. France is expected to follow suit within the next few hours. NARRATOR: The Maginot Line was put on full alert, and troops were deployed along its entire length. In fact, France invaded Germany first. Although it made limited excursions just over the German border, no serious offensive effort was ever considered. The French anticipated deploying the bulk of their troops along the border between Belgium and France. The only gap in the defenses was in the heavily wooded area known as the Ardennes Forest. The French believe that no modern army could invade through the Ardennes, so they didn't worry very much about defending it. The Maginot Line forced the enemy to attack France's weakest point. And this proved fatal for France, as the Germans pushed through, using tanks and airplanes in ways the French hadn't anticipated. They went through that area and wrapped up the French and British armies and the Belgian armies and the Dutch armies. And then they prepared to swing down into France. And what they did was a great turning movement starting along the coast and swinging around and then coming around in to attack the Maginot Line from the rear. NARRATOR: For the most part, when the Germans did attack the Maginot Line, they were unsuccessful, with the combat blocks standing up well to bombardment by the heaviest artillery the Germans could bring into play. The Germans marched into Paris on June 14, 1940, and seized the heart of France without ever breaking through the Maginot Line. Within weeks of the German invasion, France was defeated. Hitler was in Paris. The bulk of the troops along much of the Maginot Line hardly heard a gun fire. Word came down that France had capitulated. Undefeated, the troops surrendered the Maginot Line only to become prisoners of war. Soon, the Maginot Line became a storage depot for German military equipment. The world was stunned at how quickly France collapsed under the German juggernaut. In the long run, that may be one of the biggest failures in the Maginot Line. It may have engendered this false sense of security on the part of the French that, perhaps, they would have been better off to take the money they had spent on the Maginot Line and to spend that money on improving their army, improving their training. NARRATOR: By the close of World War II, the age of the fortified defensive barrier had ended. In the nuclear age, no serious attempt has been made to build a fortress around a country. And so the Maginot Line still wanders helter skelter through the Eastern fields of France, invaded only by tourists. Technological high point and low point, all at once. The young man that landed at Normandy are old now, those that survived. Other men of D-day have never left. They keep a silent vigil above the beach, defending against generations that may forget the price they paid and the promise they kept. They sacrificed their lives upon a wall that made an entire continent a fortress, Hitler's Atlantikwall a fortification of such magnitude that only the most ambitious and audacious attack in the history of warfare could possibly defeat it. And it did. In 1941, German defeat was almost unimaginable. Adolf Hitler's German war machine appeared unstoppable. The fuhrer seemed an answered prayer to a defeated Germany. Hitler promised a way out of despair through invasion. Germany would succeed if only it could do away with its enemies. Invasions began in 1939. The world watched passively as Germany attacked. Czechoslovakia fell in March, then Poland, Norway, Denmark. Belgium toppled in three weeks, Holland in four days. Battle-weary France collapsed in seven weeks. By June the Germans were in Paris. The Nazi blitzkrieg had taken a stunned continent by surprise. By the end of the year, all that separated Britain from Nazi domination were the icy waters of the English Channel, a scant 20 miles. The German army had witnessed phenomenal success. Now, it had to hold on to those gains while defeating its remaining enemies-- England across the channel, Russia in the East. But Germany had neither the manpower nor the materials to engage both countries in a simultaneous assault. Hitler had to choose which enemy to defeat first-- England or Russia. The Battle of Britain began, as Germany attempted to bomb England into submission. Unable to gain air superiority over England, Hitler chose to attack Russia. German forces were sent to the Eastern Front to begin the assault in June of 1941. But Hitler now had nearly 3,000 miles of Western European coastline to protect. How does an army defend so much territory with so few troops? At first, with expectations of a quick Russian defeat, Hitler planned to defend Europe with weaponry, big guns around the major ports in Belgium, Holland, and France. But the Russians did not collapse as quickly as Hitler had hoped. The German army was stuck in Russia, unprepared for the approaching Russian winter. When the Germans noticed that Russia was not so conquerable within half a year and that there would be a front for some-- some years more, the threat of England and America became greater. And that's why the Atlantic wall was constructed. NARRATOR: A new plan was needed to protect the Western Front, as more troops were sent to subdue Russia. Hitler's solution was a wall that would defend every mile of coastline from Denmark to Spain. At first a modest defense, Hitler's vision of the wall would grow as the war progressed. Hitler envisioned a fortress that would consist of troops coordinated among the German military to repel an enemy invasion. Troops would be supplemented by fortresses at key, strategic locations. What could the Germans do more than defend it with blockhouses, batteries, everything? There were no troops enough. There were no armored divisions enough. They could make concrete shelters. They had laborers. They had materials to construct those things. The Germans had no other choice than defend Europe with an Atlantic wall. NARRATOR: Hitler gave the order. The challenge was how to execute it with limited resources in occupied territory in the middle of a war. The Germans had been in World War I. And they knew how to dig ditches. And they knew how to put trenches in place. And they knew the kind of fire they needed to hold a position. And they put all of that to use. The basic strategy was laid out within a month or so after Pearl Harbor. And that was Europe first, cross the channel, go to the heart of Germany. That was our basic strategy from the very beginning. Everything was hinged on that. I don't know what would have happened if it had not worked. NARRATOR: The execution of such a plan would take years to prepare. Plenty of time, Germany believed, to build an unbreachable Atlantic wall. The Germans could be sure of two things in 1942: first, that the Allies would launch an attack from England, and second, that the Allies were unprepared to attack anytime soon. But Hitler's attention was drawn to the stalemate his troops faced within Russia. His army had been stopped, and reinforcements were needed. Nevertheless, work began on the Atlantic wall. Defenses extended from the Arctic Circle to the Pyrenees. Natural obstacles such as fjords and mountain ranges were incorporated into the wall. In fact, hundreds of miles of Atlantic wall would consist of nothing more than rugged terrain. The greatest natural obstacle of all was the English Channel. Notoriously unpredictable, the roiling waters had swallowed entire armadas. The Germans made use of French coastal defenses already in place at key strategic ports as early as 1941, which they supplemented with their own large coastal artillery battalions. Materials and labor-- often forced labor-- were taken from local communities. An awful lot of the Atlantic wall, incidentally, was made by Frenchman who were under the point of a gun working for the Germans helping to build this wall, to pour the cement, to put in the steel reinforcing rods. NARRATOR: The Germans concentrated their construction efforts in the Pas de Calais area. They recognized Calais as the best site for an attack against the continent. The successful invasion force at Calais could march straight to Germany a few hundred miles away. Less important or breachable coastline was fortified by strongpoint groups, defense structures that were smaller than the artillery batteries guarding the major ports. Even smaller individual strong points with less powerful weaponry were built in more remote areas. Concrete dome bunkers, or pillboxes, soon went up in France, Norway, and the Netherlands. They contained gun batteries ranging from 150 millimeters to 406 millimeters. By the fall of 1941, over 1,000 artillery guns lined the coast. By June of 1942, construction crews poured over 200,000 cubic meters of concrete every month. Ultimately, over 17,300,000 cubic yards of concrete, reinforced with millions of tons of steel, would be utilized during construction. Further, the coastline was divided into sectors to be guarded by troops. The 15th Army was responsible for the coast from the Netherlands to Normandy, including the key Pas de Calais region. The Seventh Army along the coast from Cannes to the mouth of the Loire, and the First Army from the Loire to the Pyrenees. Eventually, the 19th Army would watch the Riviera coast, in the event of an invasion from allied troops in Africa. Instead of military training, many of the German troops along the Atlantic wall spent their time in construction projects. Reinforced concrete bunkers were built with walls 3 and 1/2 meters thick, so thick they could withstand direct hits by Allied bombing raids with virtually no damage. Elaborate and impregnable battery positions were constructed. Railways delivered ammunition. Camouflage was used to hide locations. In less than four years, the Germans had poured enough concrete to build 5 and 1/2 Hoover dams. The Atlantic wall was the largest construction project of the entire war. It's very, very remarkable that, in a short time, the Germans built a lot of constructions, little bunkers, but also very big bunkers. It's remarkable. NARRATOR: But was it enough? The Allies had already begun an air campaign against Germany that forced workers along the Atlantic wall back to Germany, where they went to work rebuilding a crumbling infrastructure. The Allies were also in Africa by 1942. The Germans were forced to retreat into Italy. With Allied troops in Africa, the Mediterranean coast of France also became vulnerable to attack. Thin German resources were stretched even further, as roughly 400 miles of Mediterranean coastline were added to the Atlantic wall. In late 1943, with the possibility of invasion growing with each passing day, Hitler asked Rommel to evaluate the coastal defenses. Rommel toured the wall from Norway to the Pyrenees. He examined bunkers, gun emplacements, fortifications, miles of defenses, tons of concrete and steel, years of work. And he found them woefully inadequate. How do you defend the whole Bay of Biscay and the whole parts of Europe that had come on to the English Channel and then-- and then Europe up in the North Sea? You can't. It was just too long. There wasn't that much concrete in Germany. There weren't that many men. NARRATOR: Just as Erwin Rommel began strengthening Hitler's Atlantic wall, the Allies across the channel were planning their attack. Of primary importance to the Allies was choosing the invasion site. Calais was the obvious first choice, but the Germans had so heavily defended the Atlantic wall here that the Allies were not sure they could take it. They had tried to go in at Pas de Calais near Dieppe. They'd have been slaughtered because that's where the Germans had built the defenses most effectively. But when you started to get away from those parts to the South and West-- a-ha. Then they weren't as effective. NARRATOR: A better choice was Normandy, with its sandy beaches between Saint-Martin-de-Varreville and Osterham. True, there were disadvantages. There were no harbor ports except for Cherbourg to the West and Le Havre to the East. The channel was 120 miles wide between Portsmouth and Normandy. And Germany is further away from Normandy than Calais. But the advantages were significant. The Germans had not fortified Normandy as heavily as they had fortified other parts of the wall. And since the Germans did not expect an invasion in Normandy, the Allies might catch the Germans by surprise. Rommel set about making sure the Atlantic wall would be strong enough to stop the Allies on the beach. This meant infantry obstacles. Rommel asparagus, wooden poles designed to snap the wings of invading glider planes, grew in the farmlands of Normandy. Miles and miles of barbed wire covered the coast. Tetrahedrons made of scrap metal were planted along the shore, where they would be just under water at high tide. Teller mines placed on top of these tetrahedron guaranteed that if any boat touched or brushed them, the mines would explode. Belgian gates, which were first used to defend the Belgian coast, were steel barriers designed to prevent supply and troop ships from easy access to the shore. Hedgehogs made from welded railroad ties and designed to puncture holes in landing craft were laid all over the beach. Large wooden spikes aimed toward the sea would puncture the halls of landing craft. Machine gun nests, strategically placed, could lay flat across open beaches. Lowlands behind the beaches were flooded. You can see the defense is a garden of dead because of our very much booby traps, obstacles. NARRATOR: The Allies were making final preparations for D-day. They set the invasion date. Allied troops would land at Normandy on the morning of June 5, 1944. The British would land at Sword and Gold, the Canadians at Juno, and the Americans at Omaha and Utah. They worked out the logistics. They supplied the ships. They foresaw every contingency. Cooperation was high, except for the weather. Storms were brewing in the English Channel. Seas were so high that Eisenhower feared the armada would be destroyed before it got to France. On the morning of June 5, Eisenhower's staff weatherman promised the weather would improve. But gray clouds scattered across the skies. I was driving up in a driving rain. He said, [inaudible],, I don't know how the hell in the world am I ever going to order an invasion under these conditions. So he polled. Once again, [inaudible] always said go. The Navy said OK. And the Air force said, maybe. So he said, we go. NARRATOR: Eisenhower ordered the invasion on. There would be no turning back now. Over 150,000 men were headed to France to attack the Atlantic wall and push the Germans back to Berlin. After years of planning, it was now up to the men who would fight the Battle of Normandy. The Germans stationed along the Atlantic wall woke up to see the greatest armada ever assembled, ready to land troops, equipment, and weapons. The Allied soldiers had been told there would be no Atlantic wall by the time they landed. We got cruisers, and we got destroyers. And they're going to pound the holy hell out of those big defenses that are on the bluffs. And you're going to have tanks coming in right beside you. Now, when you get to that beach, you get behind those tanks. And you follow them up to the top of the bluff. And that's when your war is going to start. You're going to be through the Atlantic wall. NARRATOR: But it didn't go according to plan. On some beaches, Allied bombing from the armada completely missed the German fortifications. Not every beach posed the same defenses. At Utah, the Atlantic wall hardly stopped the Americans at all. At Sword, heavy bombardment had, in fact, been successful for the British. But Omaha Beach was a shooting gallery. They got just clobbered, just clobbered by German machine guns, by German mortars, by German 88s that were flying across the beach. And they just took horrendous casualties. NARRATOR: Still, the Atlantic wall was simply not strong enough to stop the Allies. The wall had been a success in some ways. It had delayed an Allied invasion, buying Hitler time. It prolonged the war and raised the associated costs of war, not just in tanks and guns and planes, not just in the cities that were destroyed, but in civilians, soldiers, and prisoners. The Atlantic wall deflected the invasion to Normandy, forcing the Allies further from their ultimate goal of Germany. And on the beaches of Normandy on June 6, 1944, it cost men their lives. Approximately 4,900 Allied casualties that first day, many from Omaha Beach. Nobody knows the number of German casualties. But ultimately, the wall had been a failure. The Allies had breached the impenetrable barrier in 14 hours. By August they were in Paris. By spring of '45, they'd cross the Rhine in Germany. No wall could defend the Nazis along the entire coast of Europe, could resist the force of cooperation among the Allied armed forces, could withstand the juggernaut of American industry, could survive the good fight. You want to know why the Atlantic wall failed? Because of the people who went against it. That's why it failed. NARRATOR: After World War II, the threat of nuclear annihilation haunted the minds of military engineers and defense strategists around the world. Permanent fortifications were no longer viable considering the power of a detonated missile. In August of 1949, an event took place in the Soviet Union that threatened the very existence of North America. The Russians had the bomb. Eventually, the growing Soviet military threat brought the US and Canada together in a defensive partnership. In time, they would undertake what many believe is the greatest underground building project ever attempted. On June 1, 1950, the first US-Canada Emergency Air Defense Plan was approved by both nations. As a first step, Canada would make its northernmost territory available for a radar system that would have been cost prohibitive for them to build and staff on their own. This system would be nicknamed the DEW Line, for Distant Early Warning Line. The location of the line would be between the Arctic Circle and latitude 70 degrees North. This would provide the US and Canada with the earliest possible warning of a Soviet attack. The stations were numerous. The cost was very, very high. And of course, the conditions under which these stations had to be placed were severe in the extreme. Canada, especially up North, can be inhospitable in the winter. And we're talking about temperatures that certainly would freeze exposed human skin and test the vacuum tube technology of the 1950s to the limit. NARRATOR: In 1957, members of the US Continental Air Defense Command and the Royal Canadian Air Force jointly recommended that the US and Canada could best counter the growing Soviet military threat to North America by forming an integrated defensive system with a combined staff from both nations. The new organization would be called the North American Air Defense Command, or NORAD. On September 12, 1957, military leaders from both the US and Canada celebrated the establishment of NORAD at Ent Air force Base in Colorado Springs. However, their exultation was short lived. Less than three weeks later on October 4, 1957, the Soviets stunned the world by launching Sputnik, the world's first man-made satellite, into Earth orbit. In many places the Soviets great scientific achievement sparked talk of spaceships and moon travel. But to NORAD, it meant that it would just be a matter of time before the Soviet Union had the capability of lobbing nuclear weapons atop intercontinental missiles into a defenseless North America. The missile age required a whole new defensive strategy. President Eisenhower had made it clear that our national defense policy would rest on a new-- new doctrine, sometimes called the New Look, which basically emphasized the role of air forces and aerospace defense and a long-range strategic bombardment to deter the Russians from attack. NARRATOR: Eisenhower strategists came to the conclusion that despite the expenditure of billions of dollars, at a certain point, the sheer number of nuclear weapons would overwhelm any sort of defensive system, including an anti-ballistic system. Therefore, they reasoned the best defense was a powerful offense. For the New Look strategy to work, it was essential that the President, the prime minister of Canada, and military command authorities be given the earliest possible warning that North America was under attack. If not, America's offensive strike force could be wiped out in a pre-emptive nuclear first strike. The idea was to deter a Soviet attack by preserving the US capability for massive retaliation. It was around this time that NORAD's fundamental mission began to change from air defense to detection, assessment, and warning. Now, NORAD needed a radar system that could detect and track ballistic missiles to their targets. In early 1958, NORAD headquarters were located in a residential neighborhood in Colorado Springs in an old, brick building on the grounds of Ent Air force Base. In addition to being much too small to manage the growing air defense system, the building was highly vulnerable to conventional attack or even sabotage, let alone a nuclear strike. NORAD's underground combat operations center was a result of a number of factors, not the least of which was the perceived threat. When the Soviets exploded their hydrogen bomb and demonstrated a capability to marry that to long range ballistic missiles, the secure command and control facility seemed essential. NARRATOR: The Air force was given the somewhat incredible task of creating a hardened site, or an underground base from which the NORAD combat operation center could survive and operate in after a nuclear attack. After a thorough study of potential sites, the Army Corps of Engineers recommended Cheyenne Mountain in the front range of the Rocky Mountains. Just four miles Southwest of Colorado Springs, Cheyenne Mountain was near existing communication lines and supporting military installations. Most importantly, a geological examination indicated that the mountain's granite rock would offer the greatest degree of protection against a thermonuclear blast in the shortest possible construction time and at the lowest cost. The excavation and creation of the Cheyenne Mountain complex would arguably be the greatest underground building project ever attempted. The Air Force design required a 253,000 square foot facility of freestanding buildings beneath 2,000 feet of solid granite. After an access road was built, the first phase of excavation began on June 20, 1961, initiated by a ceremonial first blast. To give some idea of how desperate NORAD was to complete the new hardened center, they insisted that work be done in three shifts, 24 hours a day, six days a week until the excavation was completed. Over 1,800,000 800,000 pounds of high explosives were used to blast the rock away. More than 693,000 tons of granite were excavated. It took only 367 days to do the job. The excavation itself, the building of the tunnels within the mountain, was an extremely large project. It was run by the Army Corps of Engineers. And they did an exceptionally magnificent job in accomplishing that. NARRATOR: Great care was taken in order not to blast away more rock than the excavation design called for. An innovative blasting technique called smooth wall blasting was used during excavation to prevent excessive fracturing or weakening of the granite. To ensure that rock throughout the excavation would remain structurally sound, the walls of every cavern were reinforced with a system of rock bolts. Placed in a 4-foot pattern, these 6 foot to 32-foot long steel bolts hold the rock together and provide the tension to withstand the shock effects of a nuclear detonation. Chainlink mesh was then fastened to these rock bolts. The wire mesh prevents sprawling, or the natural loosening of small rock fragments. More importantly, it would catch any rock shaken loose by a nuclear blast. There are two entrances into the mountain. The North portal leads to a 1,500-foot long tunnel. And the South portal runs for 2,500 feet. Both tunnels open into the central access tunnel, which is 1,000 feet long, 25 feet high, and 40 feet wide. The North and South tunnel entrances serve as air intakes. But more significantly, they were designed to allow a nuclear blast a way to pass through one end of the tunnel and out the other. The main complex is composed of seven major chambers in a grid pattern. These chambers are 60 and 1/2 feet high and 56 feet wide. Phase two, or the build back phase, of the project began in early 1964. 11 buildings were constructed of continuously-rolled 3/8-inch steel. Most of the buildings were three stories high. Each one was welded into a self-contained box to protect sensitive electronic equipment from the effects of an EMP, or Electromagnetic Pulse, that is generated during a nuclear blast. An air lock system was put in place to filter out the effects of nuclear, biological, or chemical contamination. Blast valves and doors were designed to prevent the effects of blast pressure and were designed to close automatically by sensing changes in the outside air pressure. All utility conduits were joined at key junctions in the flexible type of configuration which allows pipes and lines to easily sway without breaking in the event of a seismic shockwave. Every system in the mountain was also constructed with a triple redundancy, including power. With construction completed in early 1965, NORAD began the process of installing their computers, displays, and communications equipment into the new subterranean combat control center. Linking everything together and making it all work was not going to be easy, but military planners believed that our lives depended on it. The Soviet Union had already initiated the largest nuclear weapons buildup in history. In January of 1966, the new NORAD combat operations center achieved its initial operating capability. Cheyenne Mountain had now become the all-knowing, all-seeing sentinel for North America. Sir, we have an unknown. Quick alert. Quick alert. Quick alert. Prepare to initiate. [inaudible] [inaudible] warning [inaudible] quick alert. The site appears to be-- [inaudible] Roger. Sir, [inaudible] NORAD assessment is required. Need a system report. System report's valid. Missile warning recommends no assessment. This is a routine launch. NARRATOR: Over 30 years later, the new NORAD command center continues to evaluate quick alerts every time a missile is launched somewhere in the world. The command center is fed information from six other centers in and around Cheyenne Mountain. The system center confirms that all communications and computer systems are operating correctly so that what the people in the command center and other centers are seeing on their screens is accurate. NORAD's computers are all part of a closed loop system that cannot be accessed by hackers. The combined intelligence watch center gathers intelligence information from other US sources, including surveillance satellites, to assist the command center in correlating and analyzing events around the world. For example, they often warn the command center before a country is about to test a ballistic missile. The weather support unit performs two valuable functions. They monitor geophysical and space weather elements, such as solar flares, that may affect the performance of the defense support program warning satellites. Now, our satellites in space will pick up that solar flare, and it could look like the launch of an ICBM or a Submarine-launched Ballistic Missile. But our people are smart enough to know that, before they would say that's an SLBM, they'll talk with intelligence to see if they have an understanding of where submarines may be. They'll talk with the weather people who, in this case, would say, you have a solar flare that's glinting off of a calm ocean surface. And it may look like a missile launch. NARRATOR: The weather support unit also continuously monitors the weather in North America. In some instances, the unit will confirm that severe weather could be the reason that a plane is not on a planned flight path and appears as an unknown. In 1981, NORAD's name changed. Though its acronym stayed the same, NORAD's name was altered from North American Air Defense Command to North American Aerospace Defense Command to reflect its increased responsibility in the area of space surveillance and control. Since 1985, the US space command has supported NORAD in these two missions. The US Space Command provides the DSP constellation. They provide the early warning radars, the ballistic warning radars, and the submarine launch ballistic missile radars, plus a very elaborate intelligence system that is able to tap sources worldwide through other means that may be space-based to assist in confirming what these objects are. So without to the US Space Command, it would be impossible for NORAD to do that particular mission. NARRATOR: US Space Command is a unified command composed of members of all of the US armed forces. They also operate the Space Control Center in Cheyenne Mountain. The primary mission of the Space Control Center is space surveillance. We're responsible for tracking all man-made objects that rotate around planet Earth. We've been doing this since 1957 when Russia put up Sputnik. That was catalog object number one. The newest object that we're currently tracking on, some 40 years later, is object number 24,808, which is a Norwegian communication satellite. NARRATOR: Objects are tracked with both radar sensors and deep space electro-optical sensors that work much like a telescope. Incredibly, the near-Earth sensors can track objects the size of this bolt 600 miles above the Earth. On this display is the 24 satellite GPS constellation, which is a navigation constellation owned by the United States. Each of these satellites is indicated by a number. And the space trace is indicated by this line. And you can imagine what this would look like with 8,000 objects that we're currently tracking on. NARRATOR: The Space Control Center has supported every space shuttle mission by providing collision avoidance information to NASA. Ironically, the Center now provides the same type of information to our former adversaries in Russia in support of the Mir Space Station. The Space Control Center is also responsible for reentry assessments, or the prediction of when and where an object will re-enter the atmosphere. This is done for two reasons. First of all, the Space Control Center needs to have an up-to-date catalog of what is in space. The second reason is to comply with the 1971 Nuclear Risk Reduction Treaty between the US and the former Soviet Union. If it appears that an object will re-enter over Russia, they are notified in advance so that they do not mistake it for an ICBM's warhead. The missile warning center inside the Cheyenne Mountain complex has an equally important mission. Their job is to report on space launches, strategic and missile launches, and nuclear detonations around the world. One of their most important tools is the DSP, or Defense Support Program, satellite. These 2 and 1/2 ton satellites use infrared sensors to detect the heat signature of a ballistic missile during its boost phase. They are on station approximately 22,300 miles above the equator in a geostationary orbit and are spaced to provide overlapping coverage. Because they are traveling at the same speed as the rotating Earth, they essentially remain in the same location at all times like ever-present electronic sentinels. In addition to the DSPs, the missile warning center also utilizes the ballistic missile early warning system, which is built in the early 1960s. These three sites at Clear, Alaska, Tully, Greenland, and Fylingdales, England provide overlapping coverage zones that extend over 2,600 miles into the Soviet Union's Arctic regions. Two more sites on the East and West coasts of the US provide coverage of the Atlantic and Pacific Oceans, respectively. They are on the lookout for Sea-launced Ballistic Missiles, or SLBMs. This second independent system makes it possible to verify a missile event by a dual phenomenology method. And by dual phenomenology, what we're talking about is using two different types of technologies, two different types of systems to confirm that, in fact, a missile event has occurred. For example, when the missile is first launched from wherever that may occur, it's going to be picked up by our Defense Support Program satellites. But before we would say that North America is under attack, we require a confirmation of that from our surveillance radars that we have around North America. Hence the term dual phenomenology. NARRATOR: The missile warning center is responsible for evaluating incoming missile event information and quickly passing it down the line. So from the time a satellite picks up a launch worldwide, somebody processes that on the ground, sends it to us here in the missile warning center we inform the command center, the command center makes an assessment, and we inform national command authorities has to happen in under four minutes. NARRATOR: On average the missile warning center monitors over 200 missile events a year. The center is divided into theater and strategic missile sections. The strategic missile warning system evaluates any launch that may be a threat to North America, while the theater section monitors areas where US, Canadian, or Allied forces may be at risk. If a missile can travel more than 2,100 nautical miles, it's considered a strategic weapon. The biggest difference between a strategic and a theater missile launch is the flight time. While an ICBM might require 30 minutes or more to go from one continent to another, a theater missile, like the Scud, might only be in the air for a few minutes. Therefore, theater commanders receive notification of a missile launch directly from DSP satellites. NORAD then provides additional details such as the time and location of an impact. The third major warning center that contributes to the NORAD mission is the Air Defense Operations Center. Once NORAD's principal component, their responsibility today is the command and control for the air surveillance and air defense network for North America. Today, Air Defense Command's job is even more challenging due to the emergence of a dangerous new airborne threat to North America. Cruise missiles are fast, stealthy, low-flying missiles that could be armed with a nuclear warhead. They are very accurate and could be launched from a great distance by enemy ships or bombers. They are extremely difficult to detect because of their size. Very, very small radar cross-section. So you have two challenges. One is to track the-- the launching platform. And the second part is to track the missile itself. It's a technological challenge. And NORAD has been adapting to meet that challenge. NARRATOR: US and Canadian leaders are quite concerned about the proliferation of these weapons and ballistic missiles. By the year 2000, nearly 20 nations around the world could have both ballistic missile capabilities and nuclear weapons. And while today we don't anticipate a threat against our shores, in the future, as these missiles become more and more prevalent not only to nations but the terrorist groups, the risk to our country increases. We just need to think about this. I'm not saying we need to build a defense tomorrow. I'm just saying, that's a job we have a job in NORAD to protect the borders of our country and the airspace above our nation and above Canada. And that's what NORAD's future is-- worrying about ballistic missiles from rogue nations, and worrying about the tremendous expansion and the proliferation of cruise missiles and the risk to our country from those cruise missiles. The time to start worrying about and thinking about it is now, not after the first one lands on our soil. NARRATOR: Though the concept of mutually assured destruction helped deter war with the former Soviet Union, that kind of deterrence strategy would have little or no effect on terrorists. And there's always the worry of a missile being accidentally launched from somewhere. A lot of people think there's a-- a red button here and that we are the ones that push the button that would start the war. Let me assure you, there-- there are no red buttons that do those sorts of things here. We are in the warning business. And we provide this information to our nation's leaders who then make the determination as to whether or not we wish to respond in kind. Interestingly enough, I find that, in discussions with people around the country-- and we take surveys-- we find that about 70% of our population in our country thinks that we have a missile defense system today. And the reason they think that is that they watch the Gulf War. They saw the patriots firing against the scud missiles. And so they naturally think that if we could protect forces in a place like Saudi Arabia, we can obviously protect our population. Well, protecting against those kinds of missiles as opposed to the kinds of missiles, the ballistic missiles that I'm talking about that would come over great distances and travel very fast-- we're talking about a whole different kind of a capability here. And clearly, we do not have that capability in this nation today. NARRATOR: The US government is currently studying the feasibility of creating an anti-ballistic missile defense system. If it is developed, most experts believe that it will probably be operated from Cheyenne Mountain, where its deployment would be supported by the assets of both NORAD and US Space Command. Once again, NORAD's mission would be adapted to meet a new challenge. I believe NORAD still has a valid mission in the post-cold war world. The nature of the threat changes. The nature of the technology to meet that threat also changes. And NORAD has demonstrated over the last 40 years a clear capability to adapt its mission to new threats. One of the main reasons why a sovereign nation fields a military is for protection of the homeland. And the things that we're doing in this mountain today are accomplishing those goals today. And they're just as important today as they were 10 years ago. And they'll be just as important 10 years from now. NARRATOR: There's no question that NORAD will continue to play an important role in the future. But as one walks through this subterranean maze, it's hard not to think of the past and a frightening era when the unthinkable was thinkable and two mighty superpowers prepared for armageddon. As one contemplates NORAD's significance, a truth emerges that is both simple and profound. We're all still here. [music playing]
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Channel: HISTORY
Views: 199,122
Rating: 4.7306781 out of 5
Keywords: history, history channel, h2, h2 channel, history channel shows, h2 shows, modern marvels, modern marvels full episodes, modern marvels clips, watch modern marvels, history channel modern marvels, full episodes, season 1, s1, Modern Marvels S1, Modern Marvels Season 1, history channel documentary, history channel full episodes, modern marvels shows, history modern marvels, Defending Impenetrable Forts and Strongholds, walled cities to impenetrable forts, Line of Defense
Id: LKF2CjP7slc
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Length: 85min 45sec (5145 seconds)
Published: Sat Mar 20 2021
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