Ahrar ash-Sham
In early March 2016 Jaysh al-Islam clashed with the al-Rahman Legion in Zamalka, Markaz Rif Dimashq District. The groups fought for control of a building in the suburbs, resulting in the latter group expelling the former from the building and the streets. The two groups also clashed over the recruitment of fighters from the Ajnad al-Sham Islamic Union. On 28 April, Legion, supported by the al-Nursa Front and Ahrar ash-Sham, attacked JaI in eastern Ghouta, however, Ahrar ash-Sham denied involvement. The Rahman Legion's Air Defense Brigade subsequently defected to Jaysh al-Islam. By 17 May, more than 500 fighters on both sides and a dozen civilians had been killed in the fighting in East Ghouta.