The 1st Squadron, 167th Cavalry Regiment was active from February 1964 unit 1 September 2005, the date it was reorganized and redesignated as the 134th Cavalry (and precisely one month later it became the 134th Cavalry Regiment). But the organizational flash and Airborne background trimming (oval) of the 1st Squadron’s Long-Range Surveillance Detachment (LRSD), on the other hand, wasn’t worn until 2 April 1987 (per the Army insignia reference book
U.S. Army Patches, Flashes and Ovals by Barry Jason Stein).
Organizational flashes are worn centered on the stiffener of colored berets authorized to represent a specific unit type: maroon for Airborne, green for Special Forces, tan for Ranger, and brown for the newest, Security Assistance Command/Brigade. Centered on the flash itself is either a non-subdued insignia of grade (Officers), Distinctive Unit Insignia/Regimental Distinctive Insignia (Enlisted), or collar insignia (Sergeant Major of the Army and personnel in the office of the SMA, and the Senior Enlisted Advisor to the Chairman, Joint Chiefs of Staff).
Personnel in the LRSD, 1st Squadron, 167th Cavalry Regiment would have worn the 167Th Cavalry Regiment Distinctive Unit Insignia;
click here to view that insignia and/or read a synopsis of the Regiment’s lineage, history, and military honors and decorations.
Better known as an “oval,” Airborne background trimming is worn beneath Parachutists and Air Assault Badges. Under current Regulations (2021), the oval-badge combination is worn with the coats and shirts of the AGSU and ASU, as well as on the blue or green Army Maternity Tunic (female Soldiers only). The oval and badge count as a single item, and measuring for placement is done from the edge of the oval or the top of the star/star-wreath on the Senior and Master Parachutist badges.
At the time the 1-165th CAV was active, however, ovals were worn by all personnel on the old Army Green Service Uniform coat and the AG 415 shirt and only by females on the maternity tunic. Guidance on the wear of both flashes and ovals on the old Army Green Service Uniform that was replaced by the blue Army Service Uniform on 1 October 2015 can be found in the
2005 edition of AR 670-1, paragraph 28–31, "Distinctive items authorized for other than infantry personnel."