Vladimir Lenin is the revolutionary leader who took over Russia in World War 1.
Vladimir Lenin was the Russian revolutionary leader at the end of World War 1.
Tsar Nicholas II was the leader of Tsarist Russia in World War 1.
Josef Stalin.
Stalin
Stalin .
== == Ukraine was not independent during WW2, therefore it did not have a leader. It was a part of Russia
The most powerful leader in Russia during World War I was Nicholas II. In addition, Nicholas Nikolaevich and Aleksei Brusilov were leaders during WW1.
Vladimir Lenin was leader of the radical socialists who took over Russia in World War 1.
Josef Stalin, a dictator
Joseph stalin
The Russian leader during World War 2 was Joseph Vissarionovich Stalin.
The leader of Russia during the First World War was Czar Nicholas II. He was killed on July 17, 1918.