Deir ez-Zor campaign (2017–2019)
The U . S . -led Combined Joint Task Force – Operation Inherent Resolve ( CJTF–OIR ) anti-ISIL coalition provided extensive air support while SDF personnel composed the majority of the ground forces; CJTF-OIR special forces and artillery units were also involved in the campaign . 
<triplet> U.S.-led <subj> Combined Joint Task Force – Operation Inherent Resolve <obj> participant <triplet> Combined Joint Task Force – Operation Inherent Resolve <subj> U.S.-led <obj> conflict