Here is a great essay by Patrick Cockburn:
The only real way to prevent another mass killing, such as that of the 87 people killed by chemical weapons in Khan Sheikhoun on 4 April or the 278 killed by bombs in Mosul on 17 March, is to bring these wars to an end. Measures that do not do so, but purport to deter the perpetrators or limit the suffering, are pure hypocrisy.
You can read the rest @
Speaking of hypocrisy, where is the credible evidence anyone was killed by "chemical weapons" on April 4?