The first Allied offensive in Europe was in Sicily, in Italy.
Normandy
General Dwight David Eisenhower.
Japan and Italy
Dwight D Eisenhower was the 34th president of USA and a five star general of US army. He was Supreme Allied Commander in Europe from late 1943 till the end of WW II.
The Battle of Guadalcanal
Supreme Allied Commander, Europe (SACEUR)
Gain a foothold on the European mainland.
"Europe First" strategy
it's the battle of the coral sea or the battle of guadal canal...
it is an allied power
Supreme Headquarters Allied Powers Europe was created in 1951.