Interesting point, freightdawg. You may be right about that. The U-boats could have won the war for Hitler in 1942, I think, if he had the foresight to put sufficient resources at Doenitz' disposal.

Another key point was Hitler's continual favoring of bombers over fighters through most of the war. This nonsense lost him the Battle of Britain. It is fighters that must establish air superiority, and enough Bf 109's set free to do just that in 1940 could have broken the Royal Air Force, but they were tied down defending the vulnerable bombers. Once you have eliminated an enemy fighter force, then your bombers can really do the job...wherever they want to. It's fighters that win a war in the air.

Another bad decision: not replacing the Bf 109 with the Fw 190, and phasing out the 109's after 1941. Messerschmitt had too much influence, so that was not going to happen.

Another bad decision: delaying the development of the Me 262 fighter jets, and then converting them to bombers! Sheer lunacy.

And the worst decision of all: attacking Russia.