British intelligence undertook an audacious operation to listen in on the private conversations of 10,000 German prisoners of war without their ever knowing they were being overheard. The prisoners' unguarded reminiscences and unintentional confessions have only just come to light, and prove how closely the German army were involved in the atrocities of the Holocaust. British intelligence requisitioned three stately homes for this epic task, and converted each into an elaborate trap. The 100,000 hours of conversation they captured provided crucial intelligence that changed the course of the war, and revealed some of its worst horrors, from rape to mass executions to one of the earliest bulletins from the concentration camps. But when the fighting ended, the recordings were destroyed and the transcripts locked away for half a century. Only now have they been declassified, researched and cross-referenced.

For early aviators, conquering the forces of gravity was a daunting challenge. But black aviators had an additional challenge - conquering the forces of racism. Meet the men and women who took to the skies throughout the 20th century, proving to a segregated nation that skin color doesn't determine skill level. From biplanes to commercial jets, and from barnstormers to war fighters, meet the path-breaking pilots who opened the skies for all -- and contributed in countless ways to the development of aviation.

In 1946, just after the end of World War II, a secret organization of Holocaust survivors plans a terrible revenge: since the Nazis have killed millions of Jews, they will kill millions of Germans.

Engineer Dr Hugh Hunt revisits the little-known story of the First World War's Blitz, when the Zeppelin waged an 18-month terror campaign on the people of London.

The 'mighty' Hood was the pride of the British Navy for more than 20 years, revered around the world as the largest and most powerful warship afloat. But when it was sunk by the German battleship Bismarck off the coast of Greenland on 24 May 1941, its end was shockingly swift.

Meet the real-life airmen who inspired Masters of the Air as they share the harrowing and transformative events of the 100th Bomb Group.

Six million Jews died during World War II, both in the extermination camps and murdered by the mobile commandos of the Einsatzgruppen and police battalions, whose members shot men, women and children, day after day, obediently, as if it were a normal job, a fact that is hardly known today. Who were these men and how could they commit such crimes?

World War II, June 1940. France has fallen and suffers the relentless boot of Nazi Germany. But Algeria, the prized French colony in North Africa, remains part of the territory controlled by the Vichy regime of Marshal Pétain. A strict colonial order is maintained: the French of European origin rule, while local Jews are stripped of French citizenship and discrimination against the mainly Muslim population increases.

Prelude to War was the first film of Frank Capra's Why We Fight propaganda film series, commissioned by the Pentagon and George C. Marshall. It was made to convince American troops of the necessity of combating the Axis Powers during World War II. This film examines the differences between democratic and fascist states.

Return to Guam is a 1944 short propaganda film produced by the US Navy about the taking and recapture of the island of Guam. The film starts when a convoy of ships nearing the island sees strange lights flashing from the island in Morse code "information". After cautiously investigating the signal, they find that it was made by a white man, George Tweed, the last survivor of the original garrison at Guam. Tweed relates his harrowing story of how he survived in the bush for 31 months with the help of the natives, Chamorros.

A documentary propaganda film produced by the U.S. Army Signal Corps about the Aleutian Islands Campaign during World War II. The film opens with a map showing the strategic importance of the island, and the thrust of the 1942 Japanese offensive into Midway and Dutch Harbor. Nominated for the Academy Award for Best Documentary Feature.

A documentary on the volunteer Estonian Army's defense against the Soviet Army in 1944 with an emphasis on its last stand in the region known as the Blue Hills of Estonia.

A documentary covering the actions of the 6th Marine Division on Okinawa during WWII.

This documentary retraces the life of Jacques Maritain (1882 - 1973), French Christian philosopher. In evoking his life, it paints a portrait of the 20th century: the scientism of the Sorbonne, the rise of Nazism, the Resistance, Free France, Christian Democracy in South America, but also art, freedom, peace and love for the human person. Jacques Maritain, in the torments of the 20th century, of it's murderous madness and it's hope for peace, holds a secret: his ineffable and faithful love for his wife Raïssa, the inspiration for his political commitments and his philosophical thought.

The untold story of a Royal "propagandist in pearls" whose wartime friendship with President Roosevelt became a vital catalyst to win back freedom for her tiny occupied country.

German training film from World War II.

On the Pacific island of Guadalcanal in 1942, the famed 1st Marine Division — the oldest, largest and most decorated division of the U.S. Marine Corps — defeated Japanese forces in a turning point of WWII. This film documents the experiences of 1st Marine Division veterans who took part in the historic fight.

A deep dive into the history of the Canadian Government and the Department of National Defence leasing First Nations reserves as practice bombing ranges during World War I and World War II. This documentary follows the Enoch Cree Nation's process of developing it's land claim against the Canadian Government following the discovery of active landmines in the heart of the nation's cultural lands and golf course in 2014, almost 70 years later.

During WWII, there was a need for affordable housing of decent quality. In response, small pre-fabricated homes were built quickly and efficiently to accommodate the influx of workers to urban areas.

On December 13 of 1943 the Nazi occupation army in Greece executed all the male population of the town of Kalavryta while burning it to the ground. Three men who witnessed these events as kids remember.