HM-12

Helicopter Mine Countermeasures Squadron Twelve (HM-12), known as the "Sea Dragons," was established by the United States Navy on April 1, 1971. As the Navy’s first dedicated airborne mine countermeasures (AMCM) squadron, HM-12 played a crucial role in developing and deploying helicopter-based mine-sweeping techniques, primarily using the CH-53 Sea Stallion helicopters. The unit provided vital mine-clearing support during operations such as the Vietnam War and later the Persian Gulf conflicts. HM-12 was instrumental in training personnel and establishing doctrine for modern mine countermeasures before its deactivation in 1994, with its legacy continued by successor squadrons.