The YPG, a backbone of the SDF, has led the fight against the militants of the extremist Islamic State group and has been a proven top U.S. ally in Syria.
It is now believed the April 7 attack was carried out by the “deliberate placement of explosive charges” by one or more individuals at an ammunition holding area and shower facility on the base.
Gen. Frank McKenzie visited four U.S. outposts in Syria. His message Friday was short and direct: U.S. forces remain in Syria to fight the remnants of ISIS.