A famous scientist wrote the President of the United States, and the face of war, and our world, was changed forever. How and why did humanity develop a weapon capable of almost total destruction?

At war since 1914, a depleted Europe lay in ruins. Only American intervention in 1917 would turn the tide for the Allies against the Central Powers. A century after the US entered the fray, explore the reasons behind the delayed response by the US, and the impact the US Army had on the war.

The dramatic story of the defense of France against Hitler's invading army in order to enable the desperate evacuation of over 300K men of the British Expeditionary Force and Allied troops across the English Channel to safety in 1940.

The Cuban Missile Crisis was one of the defining moments of the mid-twentieth century and of the presidency of John Kennedy. How did the two Cold War powers of the USSR and the USA come to the point of threatening nuclear war?

The Cold War was won not by weapons of war, but blue jeans, silk stockings, and fast food. Just follow the money.

Franklin Delano Roosevelt is remembered for overcoming the toughest possible challenges. Staring down the Depression, staring down the Nazis, saving democracy. He would remake the world and at the same time conquer his own personal limitations.

The I-400 was one of the Imperial Japanese Navy's Sen Toku-class submarines, which were the largest submarines ever built before the age of nuclear-powered subs. These massive vessels were longer than a football field and were used as submarine aircraft carriers.

The fall of the Berlin Wall on November 9th, 1989, inevitably altered the landscape of modern geopolitical history. Watch never before seen footage taken from both sides of the wall, providing a glimpse at the everyday lives of the Berliners living within its confines.

During World War II, the submarines of the "Free French Naval Forces" scoured the Atlantic to neutralize the Nazi Navy. Discover the forgotten ships that made possible the liberation of France.

A mysterious World War II wreck is discovered off the coast of Italy by archeologists. Could this be the wreck of the long lost U-455, the last missing German U-boat?

Ex-CIA agent Ben Smith and a retired FBI officer journey through the Jungles of Burma in search of answers to a family mystery. They are searching for a crashed WWII plane that went down in this little-known, but important, theater of WWII, the perilous “Hump” - an airbridge over the Himalayas.

Arguably the greatest spy for the West during the Cold War, Dimitriy Polyakov was a Russian Military Intelligence General who turned on Russia. He was run by the CIA and FBI and betrayed by both Ames and Hanssen.

Vladimir Vetrov was a KGB officer who worked for the French intelligence service. The “Farewell Document,” shared with President Reagan included Soviet intelligence gained by Vetrov.

The Japanese Super Code reveals the US efforts to crack Japan’s unbreakable WW2 code following the horror of the attack on Pearl Harbour. But can one Naval Officer with a penchant for crosswords really stop the Japanese onslaught and turn the War in the Pacific in America’s favor?

Gjellestad, Norway. Archaeologists made the discovery of a lifetime: a 20-meter-long, 1200-year-old Viking funeral ship. Who is hiding in the grave? Is Gjellestad one of the oldest Viking settlements? What can this coffin tell us about the daily lives, beliefs, and traditions of the Vikings?

We discover you can start a war over almost anything, from an unprovoked invasion to a lost ear, a pastry, or a stolen bucket. We look at wars that lasted for centuries and others that were over in minutes and we learn that though it’s easy to start a war it’s far more difficult to end one…

An incredible story, told through the lives of Russia’s billionaire Oligarchs, of a country dominated by a dictator. From a bungled privatization of massive state-owned assets in the nineties, we explore how Putin has regained control of the powerful Oligarchs and how they’ve influenced the world.

It is a Cold War sensation. Stalin's daughter Svetlana Alliluyeva flees to the West. During her childhood in the center of power, she was Joseph Stalin's favorite child.

For decades after the end of World War II, rumors persisted that the mountains of southwest Poland held a precious secret - a mysterious train laden with tons of gold, rare jewels and priceless art hidden by the Nazis in a secret labyrinth of tunnels.

Secret Nazi files from World War II reveal formerly classified technological innovations from brilliant German scientists who raced to create terrifying new “Wonder Weapons” and an atomic bomb. Some of their technological “firsts” remain the basis for modern-day air and spacecraft.

As the "court magician of the Nazis," Kalanag enchanted parties for Goebbels and entertained the masses at Nazi Party events. At the same time, he was responsible for propaganda films. After the war, he was no longer allowed to work in the film industry, so he turned his hobby into a profession.

This time, our rivals are not men, but two deadly weapons: the Kalashnikov (AK-47) vs. the M-16. They are dueling objects that surpass the fame and notoriety of their inventors—coming face-to-face on the battlefield.

Che Guevara, the radical thinker, and Fidel Castro, the political animal: could they ever share the image of Latin America's "liberating savior?" Did Che Guevara, the diehard combatant, set off towards certain death in Bolivia?

What happened after the epic events portrayed in "Braveheart?" See how a Scottish king tried to drive the English out of Ireland in 1315.

Danielle Allen explores the bold minds and historical circumstances that resulted in one of the greatest political writings in history.

Berlin 1945 time-travels in cinematic style into the city’s most fateful year through the eyes of those who experienced it

This is the story of the rise and fall of the Third Reich as told by the personal relationships of its most notorious members.

This two-part documentary is an intimate and revealing portrait of the German people under Hitler.

Russia, the largest country on earth. Misunderstood by many and feared by even more.

Images of castles have always conjured up stories of adventure, opulence, and power. Yet, what was life really like behind their walls?

The series explores how Germans were seduced into supporting Nazism.

This three part series tells the story of the War in the Pacific.

WW2. The British Royal Navy turn to a retired wargamer and an unlikely group of young women to develop tactics and sink the German U-boats.

When US troops conquer Nazi Germany from the West in March 1945, they are followed by camera teams.

She was the “empty-headed” mistress of Adolph Hitler. Now, biographer Heike B. Görtemaker seeks to revise Eva Braun’s image.

A detailed accounting of the horrors of the Great War using colorized historical footage of World War I.

An in-depth examination of the Second World War through the eyes of those who lived through it.