Stalin .
The most powerful leader in Russia during World War I was Nicholas II. In addition, Nicholas Nikolaevich and Aleksei Brusilov were leaders during WW1.
The leader of Russia during the First World War was Czar Nicholas II. He was killed on July 17, 1918.
As the leader of Soviet Russia
Joseph Vissarionovich Stalin was the second leader of the Union of Soviet Socialist Republics (USSR), also known as the Soviet Union and sometimes referred to, somewhat inaccurately, as "Russia". The USSR no longer exists as of 1991. Russia, the largest part of the former Soviet Union, is now a country.
Joseph Stalin was the leader of the Soviet Union during World War II.
During World War I, the leader of Russia, which later became the Soviet Union, was Tsar Nicholas II until his abdication in 1917. Following the Russian Revolution, Vladimir Lenin emerged as the leader of the Bolshevik government and headed the Soviet Union during the interwar period and World War II. Joseph Stalin succeeded Lenin after his death in 1924, becoming the leader of the Soviet Union during World War II, overseeing significant military and economic efforts against Nazi Germany.
it was the the soviet union
Tsar Nicholas II was the leader of Tsarist Russia in World War 1.
Joseph Stalin was the Soviet leader during World War 2.
Stalin
Joseph Stalin
Josef Stalin.