Not too sure about Italy, but Japan were on the Germans side and got the USA to enter the war by attacking Pearl Harbour! Hopefully that gives you some help!
When World War II began, Japan sided with Germany and Italy.
The alliance between Germany, Italy, and Japan
The alliance between Germany, Italy, and Japan
The alliance between Germany, Italy, and Japan
We entered the war in 1941 after the attack on Pearl Harbor. And then after we declared war on Japan, Germany and Italy declared war on us, officially starting WWII.
When World War II began, Japan sided with Germany and Italy.
Japan is gaining very little after WW I China in civil war, encourages Japan to invade Left League of Nations Ally with Germany Invade China (not part of WW2) And then declaring war on the world with Germany and Italy
Italy, Germany, Japan
Italy and Japan
germany,italy and japan
japan and Italy