In order to give you an answer, you need to specify the time-period.
Dictatorships took power in Russia, Italy and Germany. Japan remained the monarchy it had been for centuries.
the axis consists of russia, japan, germany and italy until they switched sides.
Do you mean which countries have nuclear power? Principally the US, UK, France, Canada, Russia, Japan. To a lesser degree, Spain, Germany, India, China, South Africa, Finland, Pakistan. Italy did have but closed them down after a referendum.
Allies: Britain, Russia, and the US Axis: Italy, Germany, and Japan.
Japan fought Russia to try and obtain more power in China.
There where two sides which fought in the WWII. On one side there were allied powers(USA,France,USSR,UK,Yugoslavia...), and on the other side axes powers(Germany,Italy,Japan,Bulgaria,Austria,Albania...)
During the 1800s, imperialist countries were: Great Britain, France, Belgium, Germany, Italy, Holland, Spain, Portugal and Russia.
Italy, Germany, Japan
Germany, Japan and Italy
Germany, Italy, and Japan
Germany, Japan, and Italy
1942