Lahij or Lahej, formerly called Al-Hawtah, is a city and an area located between Ta'izz and Aden in Yemen. From the 18th to the 20th century, its rulers were of the Abdali branch of the Al-Sallami tribe who trace their lineage to one of the 10 tribes of Yaffa called Kalad. Lahij was the capital city of the Sultanate of Lahej, a protectorate of the British Empire until 1967, when the sultan was expelled and the city became a part of People's Republic of South Yemen. Now it is part of the Republic of Yemen.
The South Yemen insurgency is a term used by the Yemeni government to describe the protests and attacks on government forces in southern Yemen, ongoing since 27 April 2009. Although the violence has been blamed on elements within the southern secessionist movement, leaders of the group maintain that their aims of independence are to be achieved through peaceful means, and claim that attacks are from ordinary citizens in response to the government's provocative actions. The insurgency comes amid the Shia insurgency in the country's north as led by the Houthi communities. Southern leaders led a brief, unsuccessful secession in 1994 following unification. Many of them are involved in the present secession movement. Southern separatist insurgents are active mainly in the area of former South Yemen, but also in Ad Dali' Governorate, which was not a part of the independent southern state. They are supported by the United Arab Emirates, even though the UAE is a member of the Saudi Arabian-led coalition working to support the Yemeni government.
United States drone strikes in Yemen started after the September 11, 2001 attacks in the United States, when the US militant attacked Islamist military presence in Yemen, in particular Al-Qaeda in the Arabian Peninsula using drone warfare.
The following lists events that happened in 2015 in Yemen.
The Battle of Aden was a battle for the control of Aden, Yemen, between Houthis rebels and Yemen Army forces loyal to Ali Abdullah Saleh on one side, and Yemen Army units loyal to Abdrabbuh Mansur Hadi and Southern Movement militias on the other side.
On 26 March 2015, Saudi Arabia, leading a coalition of nine countries from West Asia and North Africa, launched an intervention in Yemen following a new joint request from Yemeni president Abdrabbuh Mansur Hadi for military support after his forces were ousted from Sanaʽa by Houthi insurgents during the Yemeni Civil War. Government forces, Houthi rebels, and other armed groups fought after the draft constitution and power-sharing arrangements collapsed, despite progress made by the UN during the political transition at that time. Violence escalated in mid-2014. Houthis and allied insurgents seized control of Sana'a in September 2014 and thereafter. In response, President Hadi asked Saudi Arabia to intervene against the Iranian-backed Houthis.
Al Anad Air Base is a military air base in the Lahij Governorate, Yemen. It is the biggest air base in Yemen.
The Shabwah campaign was a campaign for control of the Shabwah Governorate of Yemen, between the Houthis and Yemen Army units loyal to Ali Abdullah Saleh on one side, and militiamen and Yemen Army units loyal to Abdrabbuh Mansur Hadi on the other side. The offensive was also launched during a previously started AQAP offensive.
The Lahij insurgency was a guerrilla war in 2015 waged by tribesmen loyal to Abdrabbuh Mansur Hadi against the Houthis and Yemen Army units loyal to Ali Abdullah Saleh, who controlled most of the Lahij Governorate of Yemen. In late July, Pro-Hadi forces had launched an offensive to recapture Al Anad Air Base and rest of Lahij Governorate. On 4 August, Pro-Hadi forces had retaken full control of the Lahij Governorate.
The siege of Taiz is an ongoing, protracted military confrontation between opposing Yemeni forces in the city of Taiz for control of the city and surrounding area. The battle began one month after the start of the Yemeni Civil War.
The Houthi–Saudi Arabian conflict is an ongoing armed conflict between the Royal Saudi Armed Forces and Iran-backed Yemeni Houthi forces that has been taking place in the Arabian Peninsula, including the southern Saudi regions of Asir, Jizan, and Najran, and northern Yemeni governorates of Saada, Al Jawf, and Hajjah, since the onset of the Saudi Arabian-led intervention in Yemen in 2015.
The Islamic State – Yemen Province is a branch of the militant Islamist group Islamic State (IS), active in Yemen. IS announced the group's formation on 13 November 2014.
The following is a timeline of the Yemeni civil war, which began in September 2014.
The Marib campaign, also called Marib offensive, is an ongoing military campaign taking place in the Yemeni civil war for the control of the Marib Governorate of Yemen. Fighting between the Houthi forces and factions of the Yemeni Army loyal to Supreme Political Council on one side, and Yemeni Army units loyal to president Abdrabbuh Mansur Hadi and militiamen on the other side, took place since early 2015. Marib is rich in oil and gas resources and is a key strategic governorate because it connects the Houthi-controlled Sanaa and Alimi-controlled Hadhramaut governorates.
Brig. Gen. Abu Al-Yamamah Munir Mahmoud Ahmed Mashali Al Yafi was a Yemeni support forces commander. He was the leader of the Southern Movement's military arm during the Yemeni Civil War until his death. He was assassinated on 1 August 2019 alongside 35 other people, during a drone and ballistic missile attack on a military parade in Aden, Yemen carried out by the Houthis.
Events of 2020 in Yemen.
The Al Anad Air Base missile attack was a strike carried out by the pro-Saleh Yemeni Army and Houthi militants with a ballistic missile against a military camp in the Al Anad Air Base that was being used by troops of the Saudi-led coalition, in Lahij Governorate.
The Battle of Marib is an ongoing battle that erupted since February 2021 following the advance of the Houthis towards the city of Marib, the capital of Marib Governorate in Yemen controlled by the Cabinet of Yemen.
Events in the year 2023 in Yemen.
The following outline is provided as an overview of and topical guide to the Wikipedia articles available about the Yemeni Crisis (2011–present), revolution, and Yemeni civil war (2014–present).
Republic of Yemen Armed Forces 
Houthis