It is well known that the US was an industrial juggernaut in World War Two. The amount of aircraft and other military equipment the US produced is astounding. Not only did the US produce more than any other country, but it also supplied its Allies and produced better and more expensive aircraft (such as the B-29 Superfortress and P-51 Mustang). The US enabled the Allies to over-match the Axis powers in World War Two. That said, the Soviet Ilyushin Il-2 was the most produced military aircraft of the war (followed by the German Messerschmitt Bf 106 and the British Supermarine Spitfire).