IMO, they are: Battle of Britain: Drove Jerry out of Britain. Stalingrad: Once Stalingrad was won Hitler knew he was screwed. El Alamein: First major British victory. Midway: Beginning of the end for the Japs. Sicily: Beginning of the end for the Italians. D-Day: Beginning of the liberation of Europe, which was planned since the early days of the war. Berlin: The final battle. If the Allies won the battle then they'd have won the war. One notable thing is that Stalingrad, El Alamein and Midway pretty much happened simaltaneously.