The US and the USSR were the most powerful nations on earth.
1941
US and USSR
Japan attacked Pearl Harbor
The US got involved after declared war onto Japan on December 7, 1941
because in ww2 Japan joined the axis
The US joined the war because of the bombing of Pearl Harbour,it had started in Europe
After World War 2, the US had the strongest economy in the world.
Because Japan bombed Pearl Harbor in 1941.
They declared war on Japan late in 1941, after the attack on Pearl Harbor, which was in December. Before that, the US referred to the conflict as "the European War".
Because of Roosevelt wanting to rid the world of Fascism
US PresidentHarry Truman was US President at the end of World War 2.
The 8th of December 1941 was the date that the US joined world war 2