Lineage. The 1 Pursuit Squadron (which was constituted as 1 Pursuit Squadron [Single Engine], activated on 1 Aug 1939, redesignated as 1 Pursuit Squadron [Interceptor], on 6 Dec 1939, disbanded on 1 May 1942, and reconstituted on 19 Sep 1985) was consolidated (19 Sep 1985) with 1 Liaison Squadron