After Pearl harbour attack on 7th December 1941.
January 3330
Yes
April 6
April 6th, 1917
April 6th 1917
The United States of America joined the Allied Nations in World War II.
France and Great Britain
It was bad idea for America to join World War 1 because of the impending war spending that would severely damage the economy. Also, the loss of men to war casualties would lead to labor unrest.
America joined because of Pearl Harbor.
America did not join the League of Nations
Yes
2 years