VMA-131

Marine Attack Squadron 131 (VMA-131), known as the "Diamondbacks," was a United States Marine Corps Reserve attack squadron. Originally commissioned during World War II as VMSB-131, the unit flew SBD Dauntless dive bombers in the Pacific Theater. After the war, the squadron transitioned through several designations and aircraft, eventually flying the A-4 Skyhawk as a reserve attack squadron based at Naval Air Station Joint Reserve Base Willow Grove, Pennsylvania. VMA-131 was deactivated in 1992 as part of post-Cold War force reductions.