I wonder if the “biggest contribution” was parsed differently in different eras. The Soviets clearly sacrificed the most, which probably was very felt by people

I wonder if the “biggest contribution” was parsed differently in different eras. The Soviets clearly sacrificed the most, which probably was very felt by people who were surrounded by all the dying and personally experienced the violence. The US industrial contribution is easier to understand looking back. It makes a lot of sense to us nowadays, looking at it in a table (not to cheapen it, it was an astonishing amount of stuff that was produced). It seems entirely possible that the Soviets gave up more for the victory, while the US contributed more to victory.