What were the effects of World War 2 on America?

Answer 1

The U.S. emerged from WW2 as a superpower and the leading proponent of democracy in the world. The U.S. is the only country able to stand up to the Soviet Union and prevent the spread of communism. The above along with the baby boom Quicker advance in technology [not only inthe US but all of the other countries involved in the war] 'Disagreements' with the USSR [communism became a bigger deal after the 2nd world war] Nuclear Powered Navy [Hyman Rickover was like "ooh make a nuclear bomb with lots of power, how can we harness this for more power?"]...{g-d-d--n Rickover}