After looking through Wikipedia on the Vladimir Lenin page, I found this. Seems very interesting, imo.
"Lenin's Testament is the name given to a document written by Vladimir Lenin in the last weeks of 1922 and the first week of 1923. In the testament, Lenin proposed changes to the structure of the Soviet governing bodies. Sensing his impending death, he also commented on the leading members of the Soviet Union to ensure its future. "He suggested Joseph Stalin be removed from his position as General Secretary of the Russian Communist Party's Central Committee."
Does anything come to mind if this suggestion is taken seriously? Mainly World War Two in particular?