The United States warns it will "respond swiftly and appropriately" if Syrian government forces use chemical weapons during their Idlib operations. 

According to the statement: "President Donald J. Trump has warned that such an attack would be a reckless escalation of an already tragic conflict and would risk the lives of hundreds of thousands of people. Let us be clear, it remains our firm stance that if President Bashar al-Assad chooses to again use chemical weapons, the United States and its Allies will respond swiftly and appropriately."