The Armistice abolished the Imperial German air service and prohibited its reformation, though this didn't stop the formation of a "shadow airforce" created in and with the help of the Soviet Union. It wasn't until Hitler came to power that a formal German air force, the Luftwaffe, was created.
What if though Germany was permitted a limited air force in the Treaty of Versailles, (in the same manner as the 100,000 man Riecheswehr and the U-boatless Riechesmarine), say a dozen squadrons and no bombers.
Originally the organisation starts off as part of the army but in the early 20's it becomes an independent force as the Luftstreitkräfte.
So what happens when the Nazis come to power with a pre-existing air force in place, one with it's own traditions and power structure as is the case in the army and navy?