Given that the Japanese war against China began in 1937 and German aggression began in Europe in 1936, why was it not until 1941 that the United States joined the war against the Axis powers?

Answer these questions in your own words please,

1 – Given that the Japanese war against China began in 1937 and German aggression began in Europe in 1936, why was it not until 1941 that the United States joined the war against the Axis powers? Was the decision to stay out of the war until 1941 a wise one on the part of the United States?

2 – Did the United States make the right decision to drop atomic bombs on Japan? (Use the context given in the lecture to justify your response)