Click to see the full-size image
Last night, ISIS carried out an attack on a checkpoint of security forces of the US-backed Syrian Democratic Forces (SDF) in the northern Syrian city of Manbij. The attack resulted in the death of 4 servicemembers of the SDF security forces.
The ISIS attack in Manbij once again showed security gaps in the area controlled by the Kurdish-dominated group.
Friendly fire incidents are a part of war.