How did the united states contribute to allied victory in the second world war?

by 1282rb
Georgy_K_Zhukov
jschooltiger

/u/Georgy_K_Zhukov has already posted what I just looked up, but this answer might also be relevant to your question:

https://www.reddit.com/r/AskHistorians/comments/bws1nq/what_were_troops_in_the_pacific_doing_during_dday/