Poland: 1 September 1939
Britain, France: 3 September 1939
Canada: 9 September 1939
Norway, Denmark: 9 April 1940 (upon invasion)
Belgium, Luxembourg, Netherlands: 10 May 1940 (upon invasion)
Czechoslovakian government-in-exile: 21 July 1940
Greece: 28 October 1940 (upon invasion)
Yugoslavia: 27 March 1941 (left Axis after a coup)
Soviet Union: 22 June 1941 (upon invasion by Nazi Germany)
United States: 7 December 1941 (Pearl Harbor attack by Japanese)
China: 9 December 1941 (parts of China already occupied by Japan since early 1930s)
Mexico: 1 June 1942
Brazil: 22 August 1942
Iran: 9 September 1943
Ecuador: 2 February 1945
Paraguay: 8 February 1945
Peru: 12 February 1945
Uruguay: 14 February 1945
Turkey: 25 February 1945
Argentina: 28 March 1945
Italy and Germany were allied to Japan during WWII.
Allied deaths were 4391
The austro hungarians allied with germany.
UKFrance
There were about 26 countries during WWI.
The five other countries allied with Great Britain during WWI were France, Russia, Italy, USA, and Serbia.
The four main countries that made up the allied power during WW2 were Russia, United States, China, and Britain.
generally, on the sides of the countries they were colonies of
Dwight Eisenhower was the (SCAEF) Supreme Commander Allied Expeditionary Force during the European campaign of World War 2
England, France, Russia, China as well as other countries were included in the Allied Powers during WW2.
Austria-Hungary
Germany