Ankara says it wants no 'face-off' with Moscow as tensions spiral in Idlib, claims it might receive Patriot defense system, despite earlier purchase of Russian S-400 platform

Fresh offensive risks becoming full-blown conflict between Turkey and Assad's forces, shattering cooperation between Ankara and Moscow

5 wounded in latest fighting between two militaries vying for control of Idlib province areas in northwestern Syria

US legislators have warned of sanctions if Ankara activates the system, seen as a threat to NATO security

Purchase of system from Moscow and its subsequent delivery in July has been major source of friction between two NATO allies

Troops, armored vehicles and drones deployed along a 110-kilometer route where Syrian Kurdish fighters were forced to withdraw following Ankara incursion

Warning comes after Turkish leader reached agreement with Putin for removal of Syrian Kurdish fighters in area; also repeats threat to send refugees to Europe

Kremlin tells Kurdish fighters to pull back from frontier or face being 'steamrolled' by Turkish forces

Hours before Ankara set to resume offensive against US allies, leaders of Turkey and Russia agree to create 20-mile deep area free of Kurdish fighters

Turkish leader continues threats ahead of meeting with Putin; dismisses French request for ceasefire extension, claiming Paris talking to 'terrorists' but not to him