Lineage. Organized as 28 Aero Squadron on 22 Jun 1917. Demobilized on 16 Jun 1919. Reconstituted, and consolidated (9 Jan 1922) with 28 Squadron (Bombardment), which was authorized on 30 Aug 1921. Organized on 20 Sep 1921. Inactivated on 28 Jun 1922. Activated on 1 Sep 1922. Redesignated: 28