Given the conditions described during trench warfare and on Iwo Jima, The soldiers continued to fight for the sake of Honor. They can't just turn back and leave the threat of the countries win without a fight, so they continued to fight despite of the harsh condition
Everyone because America was now a just place
On September 3, 1939, in response to Hitler's invasion of Poland, Britain, and France, both allies of the overrun nation declare war on Germany.
answer: invasion of poland
blacks didnt have enought rights to do that