List of wars involving Yemen

Kingdom of Yemen

Kingdom of Hejaz and Nejd

• Military outcome unclear
• Status quo ante bellum

Kingdom of Hejaz and Nejd

 Kingdom of Yemen
Supported by:
 Italy^[2]

Kingdom of Saudi Arabia

• Treaty of Taif signed on 14 June 1934:
  • Jizan, Asir, and Najran become provinces of Saudi Arabia
  • Saudi Arabia leaves and returns control of Hajjah and Hodeidah to Yemen
  • Enforcement of a 20 years non-aggression pact^[4]
  • Yemen pays Saudi Arabia 100,000 British pounds in war indemnities^[5]

• Israeli victory
  • Establishment of the State of Israel
• Partial Jordanian victory^[12][13]
  • Jordanian annexation of the West Bank
• Palestinian defeat
  • 1948 Palestinian expulsion and flight
  • Beginning of the Palestinian Fedayeen insurgency
• Establishment of the State of Israel, Jordanian annexation of the West Bank, Egyptian occupation of the Gaza Strip

North Yemen

South Yemen

North Yemen
Republic of China
Islamic Front
Supported by:
United States

Front for the Liberation of Occupied South Yemen (FLOSY)
Supported by:
United Arab Republic

Federation of South Arabia:

• State of Aden
• Alawi Sheikhdom
• Aqrabi Sheikhdom
• Audhali Sultanate
• Emirate of Beihan
• Dathina Sheikhdom
• Emirate of Dhala
• Fadhli Sultanate
• Haushabi Sultanate
• Sultanate of Lahej
• Lower Aulaqi Sultanate
• Sultanate of Lower Yafa
• Muflahi Sheikhdom
• Sheikhdom of Shaib
• Upper Aulaqi Sheikhdom
• Upper Aulaqi Sultanate
• Wahidi Sultanate

Protectorate of South Arabia:

• Mahra Sultanate
• Kathiri Sultanate
• Qu'aiti Sultanate
• Upper Yafa
• Sheikhdom of al-Hawra
• Sheikhdom of al-`Irqa

South Arabian League
Supported by:
Saudi Arabia

• British withdrawal
• Independence of South Yemen

South Yemen

Saudi Arabia
Supported by:
Pakistan (air support)

• al-Wadiah and Sharurah captured by Saudi forces

South Yemen

North Yemen

Arab Deterrent Force (from 1976)^[c][14]

• Saudi Arabia (from 1976)
• Sudan (from 1976)
• UAE (from 1976)
• Libya (1976 only)
• South Yemen (1976–1977)

Lebanese Front (from 1976)

• Kataeb Party
• National Liberal Party
• Lebanese Forces
• Marada Brigade
• Guardians of the Cedars
• Al-Tanzim
• Lebanese Youth Movement (MKG)
• Tyous Team of Commandos
• Zahliote Group
• Shuraya Party
• Vanguard of the Maani Army (MDJ)
• Other minor organizations

Army of Free Lebanon
South Lebanon Army (from 1977)

Lebanese National Movement
PLO
ASALA

Syria (1976)
Amal Movement
PNSF
Lebanese Forces – Executive Command

• South Yemen withdraws from the ADF force in 1977
• Syria occupies northern/eastern Lebanon until 30 April 2005

• Somalia breaks all ties with the Soviet Bloc and the Second World (except China and Romania).^[17]
• Beginning of the Somali Rebellion

South Yemen

North Yemen

al-Zomrah faction of the Yemeni Socialist Party

al-Toghmah faction of the Yemeni Socialist Party

• Defeat of al-Zomrah faction and their exile to the Yemen Arab Republic
• Death of Abdul Fattah Ismail, Ali Antar, Saleh Moslih, and Ali Shayi'
• Assumption of power by Ali Salem al-Beidh and Haidar Abu Bakr al-Attas

• Yemeni Socialist Party

• Eritrean occupation of Greater Hanish until 1998.^[21] The Permanent Court of Arbitration determined that most of the archipelago belonged to Yemen, while some small islands closest to Eritrea belonged to Eritrea.

Republic of Yemen

• Yemeni Armed Forces
• Republican Guard^[23][24][25]
• General People's Congress (anti-Houthi)
• STC (2022–present)^[e]
  • United Arab Emirates^[30]
• Yemeni National Resistance (2017–present)^[31][32][24]
  • Tihamah Resistance^[24]
  • Giants Brigades^[33][34]
• Hadhramaut Tribal Alliance^[35]
• Al-Islah
• Bani Dhabyan^[36]
• Saleh loyalists (2017–present)^[37][38]
• Popular Resistance Committees^[39]
• Popular Committees

Saudi-led coalition

• Saudi Arabia^[40]
• United Arab Emirates^[41]
• Sudan^[42][43]
• Senegal^[44]
• Morocco^[45] (2015–19)^[46]
• Qatar (2015–17)^[47]
• Bahrain^[48]
• Academi security guards (2015–16)

Supported by:
United States^[49][50][51]

•  U.S. Navy^[f]
•  United States Army^[55] (Special Forces)

United Kingdom^[g]
France
Canada
South Korea

• National Intelligence Service^[60][61][62]

Belarus

• Belarusian military specialists [be]^[63][64][65]

Malaysia
Australia

STC (2017–2022)^[66] United Arab Emirates

• AQAP
  • Ansar al-Sharia
  • Islamic Emirate of Yemen
    • Aden-Abyan Islamic Army
• Council of Sunni Scholars and al-Jama'a
• Hadrami Domestic Council faction^[67][68]
• al-Dhahab tribesmen

Supported by:

• al-Shabaab
  (2009–present)^[69][70][71] (alleged)
• al-Qaeda in the Islamic Maghreb
  (2009–2017)
• al-Qaeda in the Indian Subcontinent
  (2014–present)
• Al-Nusra Front
  (2012–2017)^[72]

Alleged Support:

• Iran^[73] (denied)
• Qatar (denied)

Supreme Political Council (formerly SRC)

• Houthi movement
• General People's Congress (pro-Houthi)
• Saleh loyalists (until 2017)
• Pro-Houthi Popular Committees^[74]
• Sanaa-GPC forces^[75]

Islamic State

• Islamic State - Yemen Province

• Escalation into crisis and civil war
• Yemeni Crisis begins in late January 2011
• On 31 March 2011, AQAP declared the Islamic Emirate of Yemen

• Death of Hussein al-Houthi

• Houthis surrender after signing a deal^[83]

• Fighting ends before Presidential election

• Rebel leaders go into exile

• Yemeni government declares unilateral ceasefire

• Quds Force

Hezbollah^[87]

• Ceasefire after rebels accepted the government's truce conditions.

• Yemen Army
  • Yemeni Republican Guard
• Yemeni Air Force
• Yemen Paramilitary

Pro-government tribes^[89]

• Al-Islah militias

Supported by:

• Saudi Arabia

• Southern Movement
• Southern Resistance^[90]
• Security Belt

Supported by:

• United Arab Emirates

• General People's Congress
• Yemen Army
• Yemeni Police Force
• Central Security Organization
• Republican Guards
• Yemeni Air Force
• Pro-government tribes

• Joint Meeting Parties^[91]
  • Al-Islah^[92]
  • Yemeni Socialist Party^[92]
• Southern Movement^[93]
• Houthis^[94]
• Student activists^[95]
• Hashid^[96]
• Alliance of Yemeni Tribes^[97]
• Defected soldiers^[98]
• Civil Bloc^[99]
• National Dialogue Committee^[100]

• Resignation of Prime Minister Mujawar
• Resignation of MPs from the ruling party^[101]
• Occupation of several regions and cities in Yemen by Al-Qaeda and Houthi rebels
• AQAP declares the Islamic Emirate of Yemen
• Restructure of the military forces by sacking several of its leaders^[102]
• Approval of President's immunity from prosecution by Yemeni legislators^[103]
• One candidate Presidential election held to replace Saleh as the new president of Yemen; Abdrabbuh Mansur Hadi elected and inaugurated

• Houthis take control of northern Yemen

Saudi-led coalition

• Saudi Arabia^[40]
  
• United Arab Emirates^[41][104]
  
• Sudan
• Senegal^[44]
  
• Morocco^[45] (2015–19)^[46]
  
• Qatar (2015–17)^[47]
  
• Kuwait
• Bahrain
• Academi security guards (2015–16)
  Janjaweed (2019-2023)^[105]

STC (2017–2022)^[66]
United Arab Emirates^{[106][107][108]}

• Houthis take control of Sanaa (2014)
• Saudi Arabian-led coalition forces intervene from 2015, backing the Hadi-led government
• Former President Saleh is killed (2017)
• United Nations announce two-month nationwide truce on 2 April 2022; further extended on 2 June and officially expired in October but still active^[117]
• Hadi-led government resigns (7 April 2022)
  • Transfer of power to the PLC, consisting of STC representatives^[27][28][29]
  • Rashad al-Alimi becomes President and STC President Aidarus al-Zoubaidi becomes Vice President
• STC launches an offensive against the Islah party, taking large amounts of territory (August 2022)
• Negotiations to end the civil war that include all major combatants^[118] start in April 2023 after Iran and Saudi Arabia resume diplomatic relations^[119][120]
• Red Sea crisis begins in 2023 leading to Operation Prosperity Guardian, 2024 missile strikes in Yemen and March 2025 United States attacks in Yemen.