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At the outbreak of the war, the Nazis had the finest air force in the world. Just five years later it was a broken fleet. Why?

James Holland uncovers the truth behind Germany's Panzer tank divisions, from the mini Panzer II to the enormous Tiger tank. He also goes for a ride in Hitler's luxury Mercedes.

James goes to the depths with Germany's Wolf Packs, the U-boats, the force that most threatened wartime Britain's survival - from suicidal one-man torpedoes to the potentially game-changing Type XXI

James explores just how effective German weaponry was in battle conditions and uncovers the secret flaws the Nazis tried to hide