
Here we go again. President Bashar al-Assad’s forces used chemical weapons – most likely sarin – against civilians in the rebel-held town of Khan Sheikhoun in Idlib province in northern Syria on Tuesday. Images of the aftermath bore the hallmarks of this type of attack: victims violently convulsing, frothing at the mouth, and displaying unresponsive contracted pupils. Dozens of people, including many children, are believed to have died after the toxic substance spread following a bombing raid by warplanes.
All of this evokes memories of 2013, when Assad used sarin – a colourless and odourless substance that attacks the nervous system and is regarded as weapon of mass destruction- against the citizens of Ghouta, an opposition held district in the suburbs of Damascus.