Hitler's defeat in World War II can be attributed to a combination of factors, including strategic blunders, military setbacks, and the overwhelming industrial and manpower resources of the Allied powers. His invasion of the Soviet Union in 1941, known as Operation Barbarossa, was a major turning point in the war, as it resulted in heavy casualties for the German army and stretched its supply lines. Additionally, the Allies' successful campaigns in North Africa and Italy weakened Germany's position, while the U.S. entry into the war in 1941 tipped the balance of power decisively against Germany. Despite the valiant efforts of the German military, the Allies' superior resources and strategic planning ultimately proved too much for Hitler to overcome.
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