The 17th Aero Squadron was a United States Army Air Service unit that fought on the Western Front during World War I.
Replica 17th Aero Squadron Sopwith F-1 Camel on display at the National Museum of the Air Force, made by USAF personnel from the original World War I factory drawings, completing it in 1974. The aircraft is painted and marked with the squadron's RAF white dumbbell painted on each side of the fuselage aft of the cockpit as the Camel flown by Lt. George A. Vaughn Jr.
The 4th Pursuit Group was a United States Army Air Service unit that fought on the Western Front during World War I as part of the Air Service, Second United States Army. It was demobilized in France on 15 April 1919. There is no modern United States Air Force unit that shares its lineage and history.
141st Aero Squadron, November 1918 Gengault Aerodrome (Toul), France