Syrians have had mixed reaction to the US strikes, with some hailing them as marking an end to Bashar al-Assad’s impunity while others believe it will achieve nothing.

"Assad made a monumental miscalculation this time," Syrian-American aid worker Adham Sahloul told the Telegraph from the southern Turkish town of Gaziantep. "The US's response at the moment has been a slap on the wrist, but one that could change the calculus in Syria. The regime might just change its mind next time it thinks of targeting civilians."

He added: "Lots of pro-Obama or anti-war folks saying things like "this doesn't change anything" and "Trump doesn't care about Syrians", as if we don't know these things and are just stupid people looking for America to save us.