Commander's Decisions

[CAL]

A little off topic, but not too far. Watching the movie "MIDWAY" last night, an envoy was sent to Admiral Nimentz advising him of Washington's concerns for the safety of the Hawaian Islands and the U.S West Coast if Nimentz did not act with caution in regard to Midway Island. Anyway, Nimentz took the advisement, but decided against it and went ahead with plans to send everything to Midway. I don't know if this really happened or not, but if it did, it was a tremendiously important decesion made by a commander. During the course of WW2 I'm sure there were other great decisions that were made by a commander. Einsenhauer and D-Day of course comes to mind. What other, in everyone's
opinion, decisions were of enormous proportions made by other WW2 commanders? I would be interested any any opinions. Thank you.