Were there more military casualties in World War 1 or World War 2?

World War II, by a large margin. World War I saw about 8,500,000 military deaths. By contrast World War II produced between 20,000,000 and 30,000,000 military deaths, along with another 20,000,000 or so civilian deaths. Michael Montagne World War II, by about a factor of ten. Michael Montagne