| THIEU | President during the Vietnam War |
| ABE | Nickname for the president during the US Civil War |
| AGENTORANGE | Toxic herbicide that was sprayed from the air by the US military during the Vietnam War (5,6) |
| VIETCONG | Name by which the National Liberation Front for South Vietnam was known during the Vietnam War (8) |
| TET | During the Vietnam War, the - Offensive (3) |
| RHEE | President during the Korean War |
| ABRAHAMLINCOLN | US President during the Civil War (7,7) |
| SADAT | President during the Yom Kippur War |
| ABRAHAM | ___ Lincoln: US president during The Civil War (7) |
| POLK | U.S. president during the Mexican War |
| INONU | Ismet ___, Turkish president during the Second World War (5) |
| SAIGON | Miss ___, musical set during the Vietnam War and based on the opera Madame Butterfly (6) |
| ORANGE | Highly poisonous herbicide used as a spray for defoliation and crop destruction by the US during the Vietnam War (5.6) |
| AGENT | Highly poisonous herbicide used as a spray for defoliation and crop destruction by the US during the Vietnam War (5.6) |
| CONG | see 4dn, Political organisation and army that fought the US and South Vietnamese governments during the Vietnam War |
| AIRAMERICA | Civilian airline set up by the CIA, active during the Vietnam War (3,7) |
| VIET | and 20dn, Political organisation and army that fought the US and South Vietnamese governments during the Vietnam War |
| DANANG | Home to an American airbase during the Vietnam War |
| ROTC | Prog. discontinued at some campuses during the Vietnam War |
| SDS | Active campus gp. during the Vietnam War |
