"We will work with NATO allies and partners in the international coalition, reminding Turkey of the possible destabilizing consequences of actions (military operations in Syria. - RT ) for Turkey itself, the region and beyond," TASS quoted a statement by the Assistant Secretary of Defense Jonathan Hoffman
Earlier, US leader Donald Trump warned Turkey about the inadmissibility of striking at US troops or US allies in Syria.
On October 5, Turkish President Recep Tayyip Erdogan said the country could launch a military operation in northern Syria in the coming days.
On October 8, the Turkish Ministry of Defense announced the completion of preparations for the operation.