First Marine Division Batallion Headquarters

The Headquarters Battalion, 1st Marine Division has served as the nerve center of the "Blue Diamond" Division since its activation on February 1, 1941 at Camp Elliott, California. During World War II, the battalion provided critical command and control support in major campaigns including Guadalcanal, Peleliu, and Okinawa. In the Korean War, Headquarters Battalion coordinated divisional operations at pivotal battles such as the Inchon landing and the Chosin Reservoir. The unit continued its legacy through the Vietnam War, the Gulf War, and deployments in Iraq and Afghanistan, providing essential leadership, communications, and logistical support to ensure mission success.