Because they had totally different beliefs. It was either destroy the 'different poeple' (Jews, Homosexuals,homeless,etc.) or let the people go free. Which one would you think? The side you disagree with were perpared to kill you, child or not, they would not care.
Edit: You're smattering. There are much more other reasons. I'm really scared about the naivete of the most people in wiki answers ...
Hitler's Germany, Mussolini's Italy and Tojo's Japan were on the Axis powers.
It would keep the allied powers safe and help them defeat the axis powers
Allied Powers only did it to surprise the western part of Europe, and the Axis Powers.
Enemy of who? The Allied or Axis Powers?
the allied powers were the United States, Britain, France, Russia And the axis powers were mainly Germany, Italy, and Japan
He was the enemy of the allied countries
With the Allied powers defeating the Axis powers in WWII.
he was allied with the axis powers.
The Allied powers were Britain, France, Russia, the United States, Canada and Australia. The Axis powers were Germany, Italy, and Japan.
He was from the axis powers.
axis
they went against the allied powers
Stalin .
Axis Powers / Allied Powers .
The Allied Powers, Axis powers, and the Neutral Powers
The Axis is over.The Allies are Britain and America.
The Soviet Union (who began on the side of the Axis Powers then later joined the Allied Powers after Hitler launched an attack on her) The United States (Allied Powers) Great Britain (Allied Powers) Germany (Axis Powers) Japan (Axis Powers) Italy (Axis Powers) France was also involved as one of the Allied Powers but ended up not being much of a great power after she was overtaken and occupied by Germany near the beginning of the war.