Air warfare of World War II 1920s summarised the faith that airmen during and after World War I developed in the efficacy of strategic bombing. Many said it alone could win wars, as "the bomber will always get through". The Americans were confident that the Boeing B-17 Flying Fortress bomber could reach targets, protected by its own weapons, and bomb, using the Norden bombsight, with "pickle barrel" accuracy. Japanese aviation pioneers felt that they had developed the finest naval aviators in the world. The Luftwaffe was the German Air Force. The pride of Nazi Germany under its leader Hermann Göring, it learned new combat techniques in
B-17G "Flying Fortress" No. 44-83690 and in 1961, flown to Grissom Air Force Base (then known as Bunker Hill) for permanent display. The Heritage Museum Foundation, established in 1981 as part of the Air Force Museum Program, maintains 44-83690. In 2015 the aircraft was moved to the Museum of Aviation at Robins AFB, Georgia and is currently undergoing a lengthy restoration. B-17G "Flying Fortress" No. 44-83690 is a reasonably intact example of a World War II aircraft type of which only 50 exist in the world. It is also an example of an experimental craft, which participated, in military tests shortly after World War II.