It seems the Syrian regime passed a little gas the other day. This is not done in polite company. President Trump gave a response that was the equivalent of a slap up the side of the head. Hard enough to get their attention, not hard enough to do real damage.
Sure it is not really known what the response will be, it could devolve into a full fledged rumble. Or more likely there will be some hard feelings, and more respect. Such are the results of a well calibrated slap.
Lesson for the international community, passing gas will not be tolerated.