How did communist rule by the Vietnam-backed government differ from communist rule under the Khmer Rouge?

Supporters of using the atomic bomb at the end of world war ii believed that a japan might win the war if the bomb was not used. b americans were tired of war and the us should end it quickly. c russia was developing a bomb and the us needed to use it first. d japan was developing a bomb and the us needed to use it first.

What kind of non military support did u. s give to europe

What was the most important consequence of the large-scale ecological changes in africa two hundred thousand years ago?