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At the outbreak of World War II Milch, now with the rank of general, commanded a Luftwaffe wing during the Norwegian campaign. Following the defeat of France, Milch was promoted to field-marshal (Generalfeldmarschall) and given the title Air Inspector General. Milch was put in charge of the production of planes during this time, and his many mistakes were key to the loss of German air superiority as the war progressed[citation needed]. Due to changing the designs and aircraft requirements frequently, manufacturers like Messerschmitt were unable to focus on aircraft output. Germany produced fewer than 5,000 planes during 1942, whereas Russia increased its aircraft production to over 40,000, leading to a change of superiority on the Eastern Front. Interestingly, during 1944, when Allied bombers were razing German factories and cities, aircraft production moved up to over 40,000, comparable with the Soviets, but too late.
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After Minister of Armaments and War Production Fritz Todt died in a plane crash in February 1942, Hitler appointed Speer as his successor to all of his posts.
Speer ranked higher than Milch.