Answer:
The USA was one of the greatest powers no one really wanted to get USA involved. USA joined in 1941, 2 years after the British and the French started. USA got all the credit really because they had a lot more factories and the built the atomic bomb. But really the British were the most engaged allied power. The USA was decisive in WW2 because they had a lot more of materials etc weapons planes tanks warships
Step-by-step explanation: