World War II 1941. Belgrade, Yugoslavia. Serbian negotiators leave the German H.Q. after signing the German peace conditions. [Getty Images]

World War II, 1941, Belgrade, Yugoslavia, Serbian negotiators leave the German H,Q, after signing the German peace conditions (Photo by Haynes Archive/Popperfoto via Getty Images/Getty Images) — see more

World War II, 1941, Belgrade, Yugoslavia, Serbian negotiators leave the German H,Q, after signing the German peace conditions (Photo by Haynes Archive/Popperfoto via Getty Images/Getty Images)

Popperfoto Haynes Archive/Popperfoto