Yesterday, Operation Inherent Resolve, the US-led campaign against ISIS, said in a statement that “the coalition struck pro-regime forces [Syrian government forces] that were advancing well inside an established de-confliction zone” and “posed a threat to U.S. and partner forces” at al-Tanf.
— Inherent Resolve (@CJTFOIR) May 18, 2017
However, there is no a de-confliction [de-escalation] zone near al-Tanaf in southwestern Syria.
1. the following de-escalation areas shall be created with the aim to put a prompt end to violence, improve the humanitarian situation and create favorable conditions to advance political settlement of the conflict in the Syrian Arab Republic:
– Idlib province and certain parts of the neighbouring provinces (Latakia, Hama and Aleppo provinces);
– certain parts in the north of Homs province;
– in eastern Ghouta;
– certain parts of southern Syria (Deraa and Al-Quneitra provinces).
Thus, the US just proclaimed own de-confliction zone along the Syria-Iraqi border and will use it to blame and attack Syrian government fores operating in the area.
Maps show the real de-escalation zones in Syria agreed during the talks in Astana: