# List of wars involving Yemen

This is a list of wars involving the Republic of Yemen and its predecessor states.

## North Yemen

| Conflict | Combatant 1 | Combatant 2 | Result | Head of State |
| 1931 Saudi–Yemeni border skirmish (1931) | Kingdom of Yemen | Kingdom of Hejaz and Nejd | Unclear | Imam Yahya |
| Najran conflict (1931/1932–1932) | Kingdom of Yemen | Kingdom of Hejaz and Nejd | Defeat Yemeni invasion of Saudi Arabia repelled | Imam Yahya |
| Saudi–Yemeni War (1934) | Kingdom of Yemen | Saudi Arabia | Defeat Yemeni invasion of Saudi Arabia repelled | Imam Yahya |
| First Arab–Israeli War (1948–1949) | Egypt Iraq Transjordan Syria Lebanon Saudi Arabia Kingdom of Yemen HWA ALA | Israel | Defeat Arab League invasion of former Mandatory Palestine repelled 1949 Armistice Agreements | Ahmad bin Yahya |
| North Yemen Civil War (1962–1970) | Royalists Saudi Arabia | Republicans United Arab Republic | Regime change End of the Kingdom of Yemen | Muhammad al-Badr |
| Yemenite War of 1972 (1972) | North Yemen | South Yemen | Ceasefire Yemens pledge to unify | Abdul Rahman al-Eryani |
| NDF Rebellion (1978–1982) | North Yemen | NDF | Government victory Defeat of the National Democratic Front | Ali Abdullah Saleh |
| Yemenite War of 1979 (1979) | North Yemen | South Yemen | Ceasefire Yemens re-pledge ambition to unify | Ali Abdullah Saleh |

## South Yemen

| Conflict | Combatant 1 | Combatant 2 | Result | Head of Government |
| Aden Emergency (1963–1967) | NLF FLOSY | United Kingdom South Arabia | Victory Independence of South Yemen | None |
| Al-Wadiah War (1969) | South Yemen | Saudi Arabia | Defeat Saudi Arabia reoccupies al-Wadiah | Muhammad Ali Haitham |
| Yemenite War of 1972 (1972) | South Yemen | North Yemen | Ceasefire Yemens pledge to unify | Ali Nasir Muhammad |
| Lebanese Civil War (1976–1977) | ADF  Syria  Saudi Arabia  Sudan  United Arab Emirates  Libya  South Yemen | LF | Withdrawal South Yemen withdraws from the ADF force in 1977 | Ali Nasir Muhammad |
| Ogaden War (1977–1978) | Ethiopia Cuba Soviet Union South Yemen | Somalia WSLF | Victory Somali withdrawal from Ogaden | Ali Nasir Muhammad |
| Eritrean War of Independence (1977–1990) | Ethiopia Cuba South Yemen | ELF EPLF | Defeat Independence of Eritrea from Ethiopia | Ali Nasir Muhammad |
| Yemenite War of 1979 (1979) | South Yemen NDF | North Yemen | Ceasefire Yemens re-pledge ambition to unify | Ali Nasir Muhammad |
| South Yemen Civil War (1986) | Muhammad's faction | Ismail's faction | Regime change al-Attas becomes president | Haidar Abu Bakr al-Attas |
| Yemeni Civil War (1994) | South Yemen | Yemen | Defeat Reunification of Yemen | Haidar Abu Bakr al-Attas |

## Unified Yemen

| Conflict | Combatant 1 | Combatant 2 | Result | Head of State |
| Yemeni Civil War (1994) | Yemen | South Yemen | Victory Reunification of Yemen | Ali Abdullah Saleh |
| Hanish Islands conflict (1995) | Yemen | Eritrea | Defeat (but political victory) Eritrean occupation of Greater Hanish | Ali Abdullah Saleh |
| Al-Qaeda insurgency in Yemen (1998–2015) | Yemen United States | al-Qaeda Islamic State | Escalation into full-scale civil war Arrival of ISIL to Yemen | Ali Abdullah Saleh |
| First Sa'dah War (2004) | Yemen | Houthis | Government victory Death of Hussein al-Houthi | Ali Abdullah Saleh |
| Second Sa'dah War (2005) | Yemen | Houthis | Government victory Houthis surrender after signing a deal | Ali Abdullah Saleh |
| Third Sa'dah War (2005–2006) | Yemen | Houthis | Government victory Fighting ends before Presidential election | Ali Abdullah Saleh |
| Fourth Sa'dah War (2007) | Yemen | Houthis | Government victory Rebel leaders go into exile | Ali Abdullah Saleh |
| Fifth Sa'dah War (2008) | Yemen | Houthis | Stalemate Yemeni government declares unilateral ceasefire | Ali Abdullah Saleh |
| Sixth Sa'dah War (2009–2010) | Yemen Saudi Arabia Jordan Morocco | Houthis | Stalemate Truce signed, Houthi control of Sa'ada solidified | Ali Abdullah Saleh |
| South Yemen insurgency (2009–2015) | Yemen | Southern Movement | Escalation into full-scale civil war Separatists hold Aden | Ali Abdullah Saleh |
| Yemeni Revolution (2011–2012) | Saleh government | JMP | Regime change Overthrow of Saleh government | Ali Abdullah Saleh |
| Seventh Sa'dah War (2012–2015) | Yemen | Houthis | Escalation into full-scale civil war Houthis take control of northern Yemen | Abdrabbuh Mansur Hadi |
| Yemeni Civil War (2014–) | Hadi government Saudi Arabia United Arab Emirates Senegal Sudan Qatar Bahrain Kuwait United States Jordan Morocco Egypt France | Houthi government Houthis STC | Ongoing Houthis dissolve Yemeni government Saudi Arabian-led intervention in Yemen | Abdrabbuh Mansur Hadi (Cabinet of Yemen)Mohammed Ali al-Houthi (SPC) |