USSR
Joseph Stalin was the leader of the USSR (Russia)
Joseph Stalin allied the USSR with the Allies.
dictator of USSR
Yes, Joseph Stalin was.
The representative for the USSR at Yalta was Joseph Stalin. The US representative was Franklin Roosevelt and the British representative was Winston Churchill.
The USSR or Soviet Union,
Ruler of the USSR?
Joseph Stalin was a man, not a country. You probably want to know the population of the USSR at a given date.
joseph stalin
I believe it would be Joseph Stalin
He was the leader of the USSR
The USSR or Soviet Union.