America's top general says he was involved in "routine dialogue" with President Donald Trump about military options, should Syria ignore Washington's warnings against using chemical weapons in an expected assault on the enclave of Idlib.
Marine General Joseph Dunford, chairman of the Joint Chiefs of Staff, said no decision had been made by the United States to employ military force in response to a future chemical attack in Syria.
"But we are in a dialogue, a routine dialogue, with the president to make sure he knows where we are with regard to planning in the event that chemical weapons are used," he told reporters during a trip to India.
"He expects us to have military options and we have provided updates to him on the development of those military options," Dunford later added.
Syrian President Bashar al-Assad has massed his army and allied forces on the front lines in the northwest, and Russian planes have joined his bombardment of rebels there, in a prelude to a widely expected assault, despite objections from Turkey.
This week, a top US envoy claimed there was "lots of evidence" that chemical weapons were being prepared by Syrian government forces in Idlib