It is known that a coalition of states fought against Germany. Name the state that made a decisive

It is known that a coalition of states fought against Germany. Name the state that made a decisive contribution to the defeat of Nazi Germany?

The Soviet Union was the main country that defeated Nazi Germany. By 1941, almost all European countries were subordinated to Germany, whose industries began to work to supply the fascist army, and the armies of some states, such as Italy, Romania, Finland, and others, fought for Hitler. It was difficult to defeat such a force; more than 27 million Soviet people died in the war. The war covered the territory from the north to the black seas. Soviet soldiers defeated part of the enemy army on their territory, liberated most of Europe and captured Berlin.