Both the American and Turkish air forces halted their strikes on Syrian territory around the time Russia deployed S-400 air defense complexes at the Khmeimim airbase, from which it stages its own incursions against Islamic State (IS, formerly ISIS/ISIL).

A spokesperson of the Combined Joint Task Force Operation Inherent Resolve (CJTF-OIR) told Sputnik on Friday that the absence of anti-IS coalition airstrikes “has nothing to do with the S400 deployment” in Syria.