While last week’s horrific chemical weapons attack in Douma has seized the world’s attention, potentially pushing President Trump toward military action, Bashar al-Assad's regime has used chemical weapons more than 20 times since last year’s missile strike, and as many as eight times just since the beginning of 2018. So the question is: What comes after strikes?
The big picture: For Assad, the benefits of using these weapons have outweighed the costs. The U.S. and the international community must change that calculus through a range of economic, diplomatic and legal efforts, in addition to any military response. Otherwise, attacks will resume once the spotlight is gone.