"Born in southern Germany to middle-class parents, Rommel had won acclaim during World War I for his personal heroism as a young officer who specialized in tactics of infiltration behind enemy lines. Hitler's willingness to adopt new and unorthodox military ideas quickly won Rommel's admiration, and Rommel's relatively humble origins endeared him to the Fuehrer, who often felt uncomfortable in the presence of aristocratic generals. Hitler appointed Rommel to command his personal bodyguard in 1938. Until 1939, Rommel had always been an infantry officer, but the success of the Blitzkrieg in Poland made him a true believer in armored warfare. Soon afterward, Hitler helped him obtain command of a panzer division. Despite his lack of previous experience with tanks, Rommel mastered armored operations in a remarkably brief time. Indeed, his division performed with conspicuous success during the 1940 campaign in Western Europe. Like Guderian, he believed in he swiftest possible exploitation of a breakthrough. This continued to be his philosophy when he took over his new command in Libya."