WW1 and WW2 started in Europe........................WW2.........the Empire of Japan a lot........

› European_Theater_of_Operations,_Unite...

commanders, Dwight D. Eisenhower · Frank Andrews · Jacob Devers. The European Theater of Operations, United States Army (ETOUSA) was a United States Army ...

Notable commanders‎: ‎Dwight D. Eisenhower‎; ...

Campaigns‎: ‎World War II

Part of‎: ‎War Department‎; ‎Allied Expeditionary ...

Role‎: ‎Headquarters