By 1943, the Allies had gained air superiority over Germany, and bombings of German cities and industry had become commonplace. However, the Allies in their strategic bombing campaign did not concentrate on industry, and Speer, with his improvisational skill, was able to overcome bombing losses. In spite of these losses, German production of tanks more than doubled in 1943, production of planes increased by 80 percent, and production time for Kriegsmarine's submarines was reduced from one year to two months. Production would continue to increase until the second half of 1944, by which time enough equipment to supply 270 army divisions was being producedalthough the Wehrmacht had only 150 divisions in the field.[76]