Question: The Fall of Zinjibar and Jaar occurred during the unrest in Yemen that began in what year?
Related documents: [0]  [DOC] The Yemeni Civil War is an ongoing conflict that began in 2015 between two factions claiming to constitute the Yemeni government, along with their supporters and allies. Houthi forces controlling the capital Sana'a and allied with forces loyal to the former president Ali Abdullah Saleh have clashed with forces loyal to the government of Abdrabbuh Mansur Hadi, based in Aden. Al-Qaeda in the Arabian Peninsula (AQAP) and the Islamic State of Iraq and the Levant have also carried out attacks, with AQAP controlling swathes of territory in the hinterlands, and along stretches of the coast. [END] 
[1]  [DOC] In early December 2015, two Yemeni towns, Zinjibar (the provincial capital of Abyan Governorate) and Ja'ar (a town a few km inland to the north), were captured by the jihadist group Al-Qaeda in the Arabian Peninsula (AQAP). Zinjibar was retaken by pro-government forces 14 August 2016. This was the second capture and occupation of Zinjibar during unrest in Yemen. The town was earlier taken by AQAP’s in May 2011 and held until the summer of 2012. [END] 
Answer: 
2015
2015