Six years ago, the Syrian regime conquered the southern province of Daraa, popularly known by millions of Syrians as the “cradle of the revolution.” That military victory represented a pivotal moment for Syrian President Bashar al-Assad. After all, it was the last time the regime captured a sizable swath of opposition territory, and in doing so in July 2018, its impunity was laid bare for all the world to see. On paper, Daraa had been designated a “de-escalation zone” after months of intensive international diplomacy in which the United States had played a central role.