| Intel | Intelligence |
| Interv | Interview |
| IRO | International Refugee Organization |
| J-1 | Joint Staff personnel section |
| J-2 | Joint Staff intelligence section |
| J-3 | Joint Staff operations section |
| J-4 | Joint Staff logistics section |
| J-5 | Joint Staff civil affairs section |
| JCS | Joint Chiefs of Staff |
| Jnl | Journal |
| JSPOG | Joint Strategic Plans and Operations Group |
| KATUSA | Korean Augmentation to the U.S. Army |
| KCOMZ | Korean Communications Zone |
| KMAG | United States Military Advisory Group to the Republic of Korea |
| KSC | Korean Service Corps |
| LST | Landing ship, tank |
| MAAG | Military Assistance Advisory Group |
| MAC | Military Armistice Commission |
| MIS | Military Intelligence Service |
| NATO | North Atlantic Treaty Organization |
| NPRJ | National Police Reserve Japan |
| NSC | National Security Council |
| OCA | Office, Comptroller of the Army |
| Opnl | Operational |
| Opns | Operations |
| ORO | Operations Research Office |
| PIR | Periodic Intelligence Report |
| Plng | Planning |
| POR | Periodic Operations Report |
| POW | Prisoner of war |
| Rcd | Record |
| RCT | Regimental combat team |
| ROK | Republic of Korea |
| ROKA | Republic of Korea Army |
| RandR | Rest and recuperation |
| SCAP | Supreme Commander for the Allied Powers |
| Sec | Section (office unit) |
| sec. | Section (document) |
| Secy | Secretary |
| Sess | Session |
| SGS | Secretary of the General Staff |
| TAC | Tactical Air Command |
| TAG | The Adjutant General |
| Teleconf | Telephone conference |
| UNC | United Nations Command |
| UNKRA | United Nations Korean Reconstruction Agency |
