Euphrates Crossing offensive (2017)

The 2017 Euphrates Crossing offensive was a military offensive launched by the Syrian Arab Army against members of the Islamic State of Iraq and the Levant (ISIL) in the Deir ez-Zor Governorate, following the breaking of the three-year siege of the city of Deir ez-Zor. The Euphrates Crossing offensive, conducted by government troops, was done with the aim of denying US-backed Syrian Democratic Forces and the US itself leverage over the Syrian government.

Source: Wikipedia — Euphrates Crossing offensive (2017) (CC BY-SA 4.0)