They just wanted to get back at the Japanese people for bombing Pearl Harbour.
Japan
They wanted to drag the United States into a war with Mexico that would prevent it from entering World War I.
the united states entering the war
For the German's, they were told what to think about WW1
joe kennedy. & CHARLES LIMBURG
In ww1 the US had no real reason to fight.
The United States had invaded the Philippines before they entered the World War 2.
No, Japan attacked Pearl Harbor technically prior to the United States entering World War TWO.
Pearl Harbor brought a dramatic change on the United States views on World War II. The United States wanted to maintain neutral and prevent entering war, but once the Japanese bombed the United States at Pearl Harbor December 7, 1941, the United States changed their mindset and decalred war.
The commonly accepted answer was the attack on Pearl Harbor, however the United States had been leading up to war before this point due to the spreading conflict.
World War II and its related unemployment in the United States led to America's isolationist stance to erode during the 1940s.
William Jennings Bryan opposed the United States entering World War 1 because he had been known for peace treaties with at least 30 nations. With the United States entering into the war at least on of those countries would be allied with Germany. Another theory is that he wanted to protect America and by sending troops overseas to fight, America would be less defended than if all the troops stayed at home.