World War II was the deadliest military conflict in history in absolute terms of total casualties. Over 60 million people were killed, which was about 3% of the 1940 world population (est. 2.3 billion). Statistics of military wounded are available for the major combatants. The tables below give a detailed country-by-country count of human losses. World War II fatality statistics vary, with estimates of total deaths ranging from 50 million to more than 80 million. The higher figure of over 80 million includes deaths from war-related disease and famine. Civilians killed totalled 50 to 55 million, including 19 to 28 million from war-related disease and famine. Military deaths from all causes totalled 21 to 25 million, including deaths in captivity of about 5 million prisoners of war. Statistics on the number of military wounded are included whenever available.
Recent historical scholarship has shed new light on the topic of Second World War casualties. Research in Russia since the collapse of the Soviet Union has caused a revision of estimates of Soviet WW2 fatalities. According to Russian government figures, USSR losses within postwar borders now stand at 26.6 million. including 8.5 million due to war related famine and disease In August 2009 the Polish Institute of National Remembrance (IPN) researchers estimated Poland's dead at between 5.6 and 5.8 million. Historian Rüdiger Overmans of the Military History Research Office (Germany) published a study in 2000 that estimated the German military dead and missing at 5.3 million, including 900,000 men conscripted from outside of Germany's 1937 borders, in Austria, and in east-central Europe. The People's Republic of China puts its war dead at 20 million, while the Japanese government puts its casualties due to the war at 3.1 million.