Austria,Hungary,bulgaria,canada ,france ,Australia,Brazil,Czechoslovakia,Romania,poland,Norway,South Africa,Netherlands,New Zealand,India,Greece,Denmark,Yugoslavia,Finland,China,belgium were also involved.
The most important countries were Germany, Russia, France, Japan, Italy, USA, Great Britain, France, countries in North Africa, China, French Indo-china, Burma, New Guinea, Australia, Belgium and Austria were the most significant countries in the second world war.
Germany, Japan, U.S, United Kingdom, Italy, and Russia were all the countries that were involved in WW2