Sworn to Secrecy: Secrets of War: 4 сезон

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Take an inside look through the historic, elaborate and often unexpected instruments of war. These true stories reveal a wealth of knowledge behind the battlefield and bloodshed, highlighting the various methods used to influence and control the enemy. From Germany’s super guns to the bio-chemical weapons used throughout the decades, this season uncovers the most significant tools and techniques of wartime ‘persuasion’.