Joseph Stalin was the leader of Russia in 1939.
Hitler was never the leader of Russia.
An elected President.
Lenin
Vladimir Lenin is the leader who wanted to get Russia out of World War 1.
he became leader of Russia
Czar Nicholas Romanov II was still Russia's leader in 1914. He abdicated in March 1917.
Tsar Nicholas II was the leader of Tsarist Russia in World War 1.
Sitting Bull
All leaders of Russia were important.
Putin
Stalin