Deir ez-Zor campaign (2017–2019)
After a string of steady successes following the capturing of ISIL's Hajin stronghold and a ten-day pause for civilian evacuations , the SDF launched its final assault on the remainder of the Middle Euphrates River Valley ( MERV ) pocket on 9 February 2019 . 
<triplet> final assault <subj> 9 February 2019 <obj> start time