How Did the Soviet Union Develop Their Atomic Bomb?

The Soviet Union did not keep a record of the Soviet atomic project, even of the major events, so there is very little information known about this topic. As it was a regime with strict secrecy, only a few of the top leaders knew of the events on the atomic bomb project. Most of the people who worked on this project have died, so it is really difficult to find out about the project. Much of what we know about the project is through memoirs of the people working on the project, but these occasionally contain some inaccuracies. …