The operation, the first of its kind, was carried out at the request of the U.S. and several European countries as President Bashar al-Assad’s forces prepared to take back full control of southwest Syria.
ref:https://www.washingtonpost.com/world/israeli-military-evacuates-hundreds-of-white-helmets-rescue-workers-from-syria/2018/07/22/7971d29c-8d8d-11e8-9b0d-749fb254bc3d_story.html