IT DIDINT! World War 1 was caused by the murder of Serbian arch-duke Franz Ferdinand, while World War 2 was started by Adolf Hitler when he invaded Poland in 1939
EDIT:
After WWI, political parties in the Weimar republic blamed the loss in the Great War to Jews, Liberals, and Communists so Hitler rose to power and tried to retaliate.
World War 2 and the Holocaust was the result.
Cold War
Pearl harbor was a part of world war 2
The world is now a nuclear world.
The world entered the nuclear age and the Cold War began.
Poland, Germany
UN
The end result was the Allied powers won the war.
communism and democracy
There were a number of effects of World War 2. One result was the defeat of Nazi Germany. Another result was that Japan was left in ruins due to massive bombing.
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As a result of World War 2.