We all know the simple facts of World War 2. Those involved, the different sides, and how each were involved...

by Can-u-gofu-k

My question: How was America’s military involvement compared to other countries? Lots of people online like to push that America was the almost the biggest contributor to winning world war 2, but I don’t think this is entirely true. Which of the allies did better relative to their effectiveness? Thanks!!

Georgy_K_Zhukov

This older answer should be of interest.