- About 55 million people died. Roughly two thirds of those are civilians. Six million Jews were killed in the Holocaust.
- Before WWII, Stalin forced 25 million farmers onto state collective farms. Fifteen million peasants died by execution or starvation. He purged 600,000 party members and the nation's military leaders.
- Hitler's Operation Barbarossa amassed 3 million troops with the support of 3,350 tanks, 7,184 guns and 2,815 aircraft leaving only about 600,000 men to cover the remainder of Europe and North Africa.
- About 76,000 American and Fillipino troops on the Bataan Peninsula commanded by MacArthur surrendered in April 1942. On the death march of 6 - 12 days some 10,000 died and 15,000 died soon after from disease, wounds and exhaustion.
- The casualty of Iwo Jima - 26,000 - amounts to a third of US Marines attacking the island in February 1945.