Nuclear weapons

The first Nuclear weapon (or nuke), was a bomb which was first started development in 1942 by a group of scientists led by Robert Oppenheimer.The bomb was named fat boy.But, there were spies in the program which enabled Soviet Union or The U.S.S.R. (Communist Russia) to build nuclear weapons shortly afterwards.As the Cold war began, a nuclear arms race started between America and The U.S.S.R.