War of the Century

War of the Century: When Hitler Fought Stalin, is a BBC documentary film series that examines Adolf Hitler's invasion of the Soviet Union in 1941 and the no-holds-barred war on both sides. It not only examines the war but also the terror inside the Soviet Union at the time due to the paranoia of Joseph Stalin—the revenge atrocities, the Great Purge of army officers, the near-lunatic orders, and the paranoia of being upstaged by others, especially Marshal Zhukov. The historical adviser is Ian Kershaw.