How many were in world war I and II?

There was the Pacific Campaign against Japan, by the United States. Then there was the European Campaign against Hitler and his European ally by the United States, Soviet Russia, Great Britain and...

World War II was the deadliest conflict in world history. There were anywhere from 44-46 million military losses, and roughly 30-32 million civilian casualties, totaling roughly 70 million casualties...

Two. World War I and World War II. However, the first (1914-1918) was a mostly European conflict

There were 418,500 American military and civilian deaths as a result of combat and repression during World War II.

There were 104 countries either involved in or affected by World War II. Virtually every country was involved in one form or another. Even the neutral counties were harmed by their neighbors being at...