Battle of Hawija
The offensive was concurrent with the 2017 Central Syria campaign by the Syrian Army to capture ISIL territory towards Deir ez-Zor , as well as with the Raqqa campaign ( 2016–17 ) conducted by the Syrian Democratic Forces ( SDF ) against ISIL's de facto capital city and stronghold in Syria . 
<triplet> Syrian Army <subj> Syria <obj> country <triplet> Deir ez-Zor <subj> Syria <obj> country <triplet> Syrian Democratic Forces <subj> Syria <obj> country <triplet> ISIL's de facto capital city <subj> Syria <obj> country