H&SBn, 1stFSR:FLC

Headquarters and Service Battalion (H&SBn), 1st Force Service Regiment (1stFSR), later redesignated under the Force Logistics Command (FLC), was a key logistics and support unit within the United States Marine Corps during the Vietnam War. Activated to provide command, control, and administrative support, H&SBn managed essential services, supply lines, and personnel functions for 1stFSR and its subordinate units. The battalion played a vital role in sustaining Marine operations throughout I Corps Tactical Zone, ensuring frontline forces received necessary equipment, transportation, and maintenance support. Following the reorganization of Marine logistics elements, H&SBn continued its mission under the evolving structure of the FLC, contributing significantly to the overall success of Marine Corps operations in Southeast Asia.