The chemical weapons attack in Idlib is only the latest in a series of attacks on the 2 million people now living in the province--including 700,000 who had already fled fighting in other parts of Syria. What's worse, the attack happened during the latest declared ceasefire in a six-year-long war with no end in sight.

After some of the bloodiest fighting in more than seven years of civil war in Syria—including a suspected chemical attack in the town of Douma—the enclave of Eastern Ghouta is under the control of the Syrian government.