<< Combat Index home Combat Index Military Insignia US Air Force Insignia US Air Force Wings 4 Space Surveillance Squadron Unit Insignia Description: Azure (Dark Blue) a demi-globe issuant from base Celeste, gridlined Azure below an eagle volant proper above in dexter base three mullets of four in bend sinister Or, all within a diminished bordure of the third. Approved on 5 Jun 1995. Lineage Constituted 4th Surveillance Squadron on 26 Sep 1990. Activated on 1 Oct 1990. Redesignated 4th Space Surveillance Squadron on 15 May 1992. Assignments 73d Space Surveillance (later, 73d Space) Group, 1 Oct 1990; 21st Operations Group, 26 Apr 1995–. Stations Lackland AFB, TX, 1 Oct 1990–. Aircraft None Operations Operated the Developmental Space Tracking System, Oct 1990–. Service Streamers None Campaign Streamers None Armed Forces Expeditionary Streamers None Decorations None