Members of the Syrian opposition delegation of the High Negotiations Committee (HNC) George Sabra (2nd L) delegation head Asaad Al-Zoubi (C) and Chief negotiator, Army of Islam rebel group’s Mohammed Alloush (2nd R) attend a meeting with U.N. mediator on Syria Staffan de Mistura during Syria peace talks at the United Nations in Geneva, Switzerland, April 15, 2016. REUTERS/Fabrice Coffrini/Pool