The end of World War I was followed immediately by a massive demobilization of the U.S. Army Air Service, both in reduction of personnel and dissolution of air units, including the 1st Pursuit Group, demobilized 24 December 1918. A new 1st Pursuit Group began to be formed on 10 June 1919, at Selfridge Field, Michigan, and became an active part of the Air Service on 22 August 1919, consisting of the 27th, 94th, 95th and 147th Aero Squadrons (Pursuit), and the 2nd Air Park (later the 57th Service Squadron). The new 1st Pursuit Group, as part of the 1st Wing, moved to Kelly Field, Texas, on 31 August 1919, and Ellington Field, Texas, on 30 June 1921. There, the 94th Aero Squadron operated the Pursuit Training School. The 1st Pursuit Group returned to Selfridge on 14 June 1922, as part of the Sixth Corps Area, where it remained until World War II.