American officials had predicted that the missile strike would result in a major shift in Assad's calculus, but the US attack appeared to be symbolic in reality. Within 24 hours of the strike, monitoring groups reported that warplanes were again taking off from the bombed Shayrat air base, this time to attack Isis (Islamic State) positions.
There were also reports of Syrian Government and Russian airstrikes across the provinces of Damascus, Aleppo, Idlib and Daraa, all killing civilians. There were no reports of further use of chemical weapons.
"The American strikes did nothing for us. They can still commit massacres at any time," said Majed Khattab, speaking by phone from Khan Sheikhoun. "No one here can sleep properly; people are really afraid."
Turkish Foreign Minister Mevlut Cavusoglu described Trump's decision to retaliate as welcome but not enough. "If this intervention is limited only to an air base, if it does not continue, and if we don't remove the regime from heading Syria, then this would remain a cosmetic intervention," he said.
Trump defended the operation against criticism from some members of Congress and military analysts that the volley of missiles did not target the runways. Administration officials have said the attack successfully destroyed refuelling stations, hangars and some planes.
"The reason you don't generally hit runways is that they are easy and inexpensive to quickly fix (fill in and top)!" Trump wrote on Twitter from Mar-a-Lago after playing a round of golf. In an earlier message, Trump offered: "Congratulations to our great military men and women for representing the United States, and the world, so well in the Syria attack."