Tsarist Russia in World War I and the Soviet Union in World War II.
Chat with our AI personalities
Russia
Russia, with over 3.3 million deaths.
The USSR, suffered numerous millions of deaths, mainly on the eastern front.
According to me the Germans lost the most land post in WW1 because in the end the central powers were defeated by the allied powers which had been consisted of Russia Italy France England USA & Japan.
Brazil is such country.