A set of legal<span> principles generally accepted </span>throughout<span> Europe.</span>
Many knights were professional warriors who served in the lord's army. ... In return, the lord provided the knight with lodging, food, armor, weapons, horses and money. Peasants, or serfs, farmed the land and provided the vassal or lord with wealth in the form of food and products.
He wanted to bring an end to slavery.
Answer:
I believe 2 reasons are:
1.) The U.S didn't know what Hitler was doing until after the war
2.) The U.S wasn't sure how destructive he would be