Lt. Gen. Stephen Townsend, recently appointed US commander of American forces in Iraq and Syria, have told reporters that the coalition forces have officially informed Moscow and Damascus of possible countermeasures should the US forces "feel threatened" by Syrian forces.
"We've informed the Russians where we're at… (they) tell us they've informed the Syrians, and I'd just say that we will defend ourselves if we feel threatened," he said.
The US Special Forces were ordered to change location as a precaution while US jet patrols over the region were beefed up.
Hasaka is located in northern region of Syria, which is currently under influence of Syrian Kurdish forces, who until recently were not in confrontation with Damascus, thanks to their successful fight against Daesh forces. But their growing military strength is now viewed as a possible threat of Kurdish separatism. The US-led coalition forces are known to use three airstrips located in northern Syria.
Earlier in July, the chief of Russia's Federal Security Service (FSB) Alexander Bortnikov reported that Russia and the US are exchanging information on "most sensitive issues." Dmitry Peskov, the spokesman for Russian President Vladimir Putin, has told journalists earlier in June that Russia and the US conduct constant informational exchange on military operations in Syria.