Joseph Stalin (aka Ioseb Besarionis dze Jughashvili) was the paramount leader of the USSR who held the position of:
during the Second World War.
There was no one "world leader", but the two main competing nations were the United States and the Soviet Union.
United States
USA & Soviet Union
The Soviet Union aka the ussr.
Tsarist Russia in World War I and the Soviet Union in World War II.
Joseph Stalin was the leader of the Soviet Union during World War II.
Joseph Stalin was the leader of the Soviet Union when the United States entered World War 2.
Joseph Stalin
Josef Stalin
Joseph Stalin
The Soviet Union
Jozef Stalin
Josef stalin
He was the leader of the Soviet Union.
Josef Stalin
Stalin
Joseph Stalin