The war was fought chiefly between two major alliances: the Axis and the Allies.
Below is a list of the countries that fought in the war and the side they were on.
Slovakia (Nov. 1940)
Hungary (Nov. 1940)
Romania (Nov. 1940)
Bulgaria (March 1941)
- The Netherlands
- New Zealand
- South Africa
- United Kingdom
- United States
The Tripartite Pact of September 27, 1940, allied (brought together) Germany, Italy, and Japan.
The Allies included:
- Commonwealth countries such as Australia, New Zealand and Canada
- Countries in the British Empire such as India.