KMC--Korean Marine Corps. LCM--Landing Craft, Mechanized. LCVP--Landing Craft, Vehicle and Personnel. LSD--Landing Ship, Dock. LSM--Landing Ship, Medium. LSMR--Landing Ship, Medium-Rocket. LST--Landing Ship, Tank. LSU--Landing Ship, Utility. LVT--Landing Vehicle, Tracked. LVT(A)--Landing Vehicle, Tracked (Armored). MAG--Marine Air Group. MAW--Marine Air Wing. MedBn--Medical Battalion. MGCIS--Marine Ground Control Intercept Squadron. MIA--Missing in action. MOS--Military Occupational Specialty. MPCo--Military Police Company. MTACS--Marine Tactical Air Control Squadron. MTBn--Motor Transport Battalion. NCO--Noncommissioned Officer. NGF--Naval Gunfire. NK--North Korea(n). NKPA--North Korean Peoples Army. OCMH--Office of the Chief of Military History (USA). Off--Officer. OP--Observation Post. OpnO--Operation Order. OrdAmmCo--Ordnance Ammunition Company (USA). OrdBn--Ordnance Battalion. OY--Consolidated-Vultee light observation plane. PC--Submarine Chaser. PCEC--Escort Amphibious Control Vessel. PF--Frigate. PhibGru--Amphibious Group. PhibTraPac--Training Command, Amphibious Forces, Pacific Fleet. PIR--Periodic Intelligence Report. Plat--Platoon. POL--Petroleum, Oil, Lubricants. POW--Prisoner of War. RAF--Royal Air Force. RcnCo--Reconnaissance Company. RCT--Regimental Combat Team. RktBn--Rocket Battalion. ROK--Republic of Korea. SAC--Supporting Arms Center. SAR--Special Action Report. SCAJAP--Supreme Commander Allied Powers, Japan. ServBn--Service Battalion. SigBn--Signal Battalion. SigRepCo--Signal Repair Company (USA). SPBn--Shore Party Battalion. SpOpnsCo--Special Operations Company (USA). TAC--Tactical Air Coordinator. TAC X Corps--Tactical Air Command, X Corps. TacAir--Tactical Air. TADC--Tactical Air Direction Center. T-AP--Transport Operated by MSTS. T/E--Table of Equipment. TF--Task Force. TG--Task Group. T/O--Table of Organization. UDT--Underwater Demolitions Team. UF--Unit of fire. UN--United Nations. UNC--United Nations Command. USA--United States Army. USAF--United States Air Force. USMC--United States Marine Corps. USN--United States Navy. VMF--Marine fighter type aircraft (squadron). VMF(N)--Marine night fighter type aircraft, all-weather (squadron). VMO--Marine observation type aircraft (squadron). VMR--Marine transport type aircraft (squadron). WIA--Wounded in action. WP--White phosphorous. YMS--Motor Minesweeper. YTB--Harbor Tug, Big. YW--District Barge, Water (self-propelled). APPENDIX B Build-Up of 1st Marine Division (Reinf) (Figures include Marine Corps and Navy, both officer and enlisted)