nd the tank were introduced, and sea warfare was revolutionized by the submarine. (Miller, Clarke)
             World War II (1939-45) proved itself to be a return to the war of movement. The Germans were first successful because they used numerous tanks with a vicious, conquest mentality directed at Poland and France. Eventually, the Allies were able to defeat the Germans because of their superior numbers and industrial strength. Armor was used to great advantage in Russia, North Africa, and, in the final campaigns, in Western Europe. In the Pacific war, which was fought over a wide expanse of ocean, amphibious operations played an important role. Naval aviation and the aircraft carrier became the major weapons of the war at sea, and battles such as Midway were fought without the opposing fleets drawing within sight of each other. (Miller, Clarke)
             More than any other war in the history of the "modern" world, World War II involved the commitment of nations' entire human and economic resources, the blurring of the distinction between combatant and noncombatant, and the expansion of the battlefield to include all of the enemy's territory. The most important determinants of its outcome were industrial capacity and personnel. In the last stages of the war, two radically new weapons were introduced: the long-range rocket and the atomic bomb. In the main, however, the war was fought with the same or improved weapons of the types used in World War I. The greatest advances were in aircraft and tanks.
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