Yemen crisis (2011–present)

Yemen crisis (2011–present)
Name	Yemen crisis (2011–present)
Date	2011–present
Place	Sanaa, Aden, Marib Governorate, Taiz Governorate, Al Hudaydah Governorate
Status	Ongoing low-intensity conflict, humanitarian emergency

Yemen crisis (2011–present) The Yemen crisis began with mass protests in 2011 and evolved into a complex, multi-sided armed conflict that has produced one of the world's worst humanitarian emergencies. Political fragmentation, armed insurgencies, regional rivalries, and economic collapse have involved domestic actors such as the House of Representatives (Yemen), the General People’s Congress (Yemen), the Islah (Yemen) party, and the Houthis, as well as external states and coalitions. The crisis has reshaped institutions including the Central Bank of Yemen, affected strategic waterways like the Bab-el-Mandeb Strait, and drawn in global organizations such as the United Nations and the International Committee of the Red Cross.

Background and causes

Yemen's political instability traces to the Unification of Yemen in 1990 and the 1994 civil war in Yemen, which left unresolved divisions among northern and southern elites, tribal federations such as the Hashid tribal confederation and Bakil tribal confederation, and regional actors including Saudi Arabia and Iran. The 2011 Arab Spring protests targeted long-time leader Ali Abdullah Saleh and involved coalitions of opposition parties like the Joint Meeting Parties (Yemen), labor unions, and youth movements inspired by events in Tahrir Square and protests in Bahrain. The 2011 Gulf Cooperation Council initiative, mediated by the United Nations Security Council, led to Saleh's nominal transfer of power to Abdrabbuh Mansur Hadi, but persistent grievances over resource distribution, corruption tied to families and networks around Saleh, and grievances in the former South Yemen fueled renewed conflict. Militant groups including Al-Qaeda in the Arabian Peninsula and later affiliates of Islamic State of Iraq and the Levant exploited the political vacuum.

Timeline of the conflict

The crisis escalated in 2014 when the Houthi insurgency seized Sanaa and allied with forces loyal to Saleh in a coup against Hadi, precipitating the 2015 intervention by a Saudi-led coalition (2015–present) that included United Arab Emirates forces and received logistical support from United States assets. Major events include the Battle of Aden (2015), the siege of Taiz and the Battle of Marib (2021–2022), repeated offensives around Al Hudaydah, and maritime incidents in the Gulf of Aden. Diplomacy produced episodic ceasefires brokered by the United Nations Special Envoy for Yemen and talks hosted in countries such as Oman and Sweden (2018) that yielded the Stockholm Agreement (2018), but frontlines shifted with counteroffensives by the Southern Transitional Council in Aden and pro-Houthi missile and drone strikes on Saudi Arabia. The 2020s saw continued stalemate, intermittent prisoner exchanges, and negotiations mediated by the International Committee of the Red Cross and the European Union, with sporadic escalations affecting cities and oil infrastructure.

Key actors and factions

Principal domestic actors include the Houthis (also known as Ansar Allah), forces loyal to former President Ali Abdullah Saleh until his death in 2017, the internationally recognized government of Abdrabbuh Mansur Hadi, and the Southern Transitional Council, which draws support from southern secessionist movements linked to the former People's Democratic Republic of Yemen. Political parties involved include the General People’s Congress (Yemen), Islah (Yemen), and the National Resistance. Non-state violent actors such as Al-Qaeda in the Arabian Peninsula and Islamic State of Iraq and the Levant – Yemen Province have conducted high-profile attacks. Regional and international actors influencing the conflict include Saudi Arabia, the United Arab Emirates, Iran, the United States, the United Kingdom, and multilateral actors like the United Nations and the International Monetary Fund.

Humanitarian impact and displacement

The crisis induced large-scale displacement, with millions internally displaced across governorates such as Aden Governorate, Taiz Governorate, and Marib Governorate and refugee flows to neighboring Djibouti, Somalia, and Oman. Humanitarian organizations including the United Nations Office for the Coordination of Humanitarian Affairs, UNICEF, World Food Programme, and Médecins Sans Frontières have documented famine-like conditions, cholera outbreaks, and disrupted vaccination campaigns. The breakdown of services at facilities such as Sana'a University Hospital and damage to water systems exacerbated public health emergencies described by agencies including the World Health Organization and the International Committee of the Red Cross.

International involvement and diplomacy

International responses combined military intervention, arms transfers, sanctions, and mediation. The Saudi-led coalition conducted air campaigns supported by partners like the United States and the United Kingdom, while several states imposed sanctions through mechanisms associated with the United Nations Security Council. Diplomatic efforts involved envoys such as Ismail Ould Cheikh Ahmed and Martin Griffiths (diplomat), talks in Geneva, Stockholm, and Muscat, and initiatives by the Gulf Cooperation Council and the European Union. Humanitarian diplomacy engaged agencies including the International Committee of the Red Cross and the International Rescue Committee to facilitate ceasefires and aid deliveries.

Economic collapse and infrastructure damage

The crisis devastated institutions such as the Central Bank of Yemen, disrupted oil and gas fields around Marib, and hit ports including Al Hudaydah Port and Aden Port, undermining revenue from exports and import-dependent supply chains. Damage to electricity grids, water desalination plants, airports like Sana'a International Airport, and telecommunications infrastructure precipitated economic contraction measured by organizations such as the World Bank and the International Monetary Fund. Currency depreciation and public sector wage arrears triggered market disruptions and increased poverty in urban centers like Sanaa and Taiz.

Aftermath, peace efforts, and reconstruction

Efforts toward a durable settlement have combined localized truces, prisoner swaps, confidence-building measures, and talks in venues facilitated by the United Nations and regional intermediaries such as Oman and Qatar (emirate). Reconstruction priorities identified by international donors include rebuilding hospitals, restoring port operations at Al Hudaydah Port, demining by organizations such as the United Nations Mine Action Service, and reforms of fiscal institutions like the Central Bank of Yemen. Sustainable peace requires addressing legacies from the 1994 civil war in Yemen, southern demands tied to the Aden Emergency (2015–2016), and regional security arrangements involving Saudi Arabia and Iran. Long-term recovery will depend on coordinated donor initiatives by the World Bank, United Nations Development Programme, and bilateral partners.

Category:21st-century conflicts