Who authorized the atomic bomb to be dropped on japan?

Ineed asap ! name the differences between communism and fascism. 1who controls the government and how do they stay in power? 2how are the people’s personal lives and decisions affects? 3what is the government’s view on the economy and how it should be handled? 4what is the government’s view on other countries and their relationship with them?

Don’t mind the already marked answer but taking it now

Which of the following were lyndon johnson's goals as president?