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