A fighter from the Kurdish People
Protection Unit (YPG) guards a checkpoint in the Syrian town of Ain
Issi, on July 10, 2015 (AFP Photo/Delil Souleiman)
Syria's leading Kurdish militia and several Arab rebel groups that have fought alongside it have formalised their alliance in a new group called the Syrian Democratic Forces.
The formation of the alliance comes after Washington said it was abandoning a plan to train and equip rebels to fight the Islamic State group and could provide the US with a new partner in the battle against the jihadist group.