What which Allied nation suffered the most military deaths?

The Soviet Union suffered the most military deaths among the Allied nations during World War II, with estimates ranging from 8 to 14 million military personnel lost. This staggering number reflects the intense and brutal fighting on the Eastern Front, particularly during major battles such as Stalingrad and the siege of Leningrad. The immense sacrifices made by Soviet forces were pivotal in the eventual defeat of Nazi Germany.