The 104th Long Range Surveillance Detachment (LRSD) was a specialized reconnaissance unit within the U.S. Army National Guard. Originally established during the Cold War era, its primary mission was to conduct deep reconnaissance and surveillance operations behind enemy lines, providing critical intelligence to higher headquarters. The unit was trained in advanced patrolling, stealth infiltration, and intelligence gathering, often operating in small, highly skilled teams. The 104th LRSD supported both national defense missions and overseas deployments before being inactivated or restructured as the Army shifted towards new surveillance technologies and force structures in the early 21st century.
