Adolf Hitler
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be assured, and Hitler ordered the bombing of British cities, including London, Plymouth, and Coventry, mostly at night. In the Spring of 1941, Hitler was distracted from his plans for the East by various activities in North Africa, the Balkans, and the Middle East. In February, German forces arrived in Libya to bolster the Italian forces there. In April, he launched the invasion of Yugoslavia which was followed quickly by the invasion of Greece. In May, German forces were sent to support Iraqi rebel forces fighting against the British and to invade Crete. On 23 May, Hitler released Fuhrer Directive No. 30. On 22 June 1941, three million German troops attacked the Soviet Union, breaking the non-aggression pact Hitler had concluded with Stalin two years earlier. This invasion seized huge amounts of territory, including the Baltic states, Belarus, and Ukraine. It also encircled and destroyed many Soviet forces, which Stalin had ordered not to retreat. However, the Germans were stopped barely short of Moscow in December 1941 by the Russian winter and fierce Soviet resistance. The invasion failed to achieve the quick triumph Hitler wanted. A major historical dispute concerns Hitler's reasons for Operation Barbarossa. Some historians such as Andreas Hillgruber have argued that Barbarossa was merely one "stage" of Hitler's Stufenplan (stage by stage plan) for world conquest, which Hillgruber believed that Hitler had formulated in the 1920s. Other historians such as John Lukacs have contended that Hitler never had a stufenplan, and that
Path to defeat
the invasion of the Soviet Union was an ad hoc move on the part of Hitler due to Britain's refusal to surrender. Lukacs has argued that the reason Hitler gave in private for Barbarossa, namely that Winston Churchill held out the hope that the Soviet Union might enter the war on the Allied side, and that the only way of forcing a British surrender was to eliminate that hope, was indeed Hitler's real reason for Barbarossa. In Lukacs's perspective, Barbarossa was thus primarily an anti-British move on the part of Hitler intended to force Britain to sue for peace by destroying her only hope of victory rather than an anti-Soviet move. Klaus Hildebrand has maintained that Stalin and Hitler were independently planning to attack each other in 1941. Hildebrand has claimed that the news in the spring of 1941 of Soviet troop concentrations on the border led to Hitler engaging in a flucht nach vorn ("flight forward" – i.e. responding to a danger by charging on rather than retreating.) A third fraction comprising a diverse group such as Viktor Suvorov, Ernst Topitsch, Joachim Hoffmann, Ernst Nolte, and David Irving have argued that the official reason given by the Germans for Barbarossa in 1941 was the real reason, namely that Barbarossa was a "preventive war" forced on Hitler to avert an impeding Soviet attack scheduled for July 1941. This theory has been widely attacked as erroneous; the American historian Gerhard Weinberg once compared the advocates of the preventive war theory to believers in "fairy tales" The Nazi invasion of the Soviet Union reached its apex on 2 December 1941 as part of the 258th Infantry Division