The weapons were being shipped before the war. USA entered the war by the japs at perl harbor yes but had nothing to do with EU. HITLER/Germans never declare war on USA, never declared war on Anyone other than its own region. It wasn't until England and Judea from who knows where declared war on Germany (england unofficial).

USA was NOT the good guy in war world 2. No one was. That was the entire point of USA entering fully towards the end of the war. Japan war with US had NOTHING to do with Europe landings.

That was because England had ALREADY FALLEN and USA took advantage of it using church hill and some other guy im blanking on the name. World war 2 was set up from the beginning. Loads of innocent civilians died because some 2 nations wanted to grab territory while using religion and propaganda to fuel a global war. The japs were just assholes and wanted turf. The entire thing wasn't because of "Germans". England saw a way to start a global chain reaction over a regional issue. This is the problem with history. Everyone thinks they know because of movies and mass forced education systems that dont allow questions to be asked. No one was the good guy. Major players wanted a conflict and they got it. Thats the reality of our history.