The Christians of Syria, like millions of Christians in the region, have historically been a contingent people, throwing themselves at the mercy of the sovereign. The Syriac Christians of the SDF seem different. Though numerically small, they offer perhaps the best hope for pluralism in Syria. Unlike the Free Syrian Army -- a collection of thugs and Islamists, whom the last American administration armed in an act of consummate imprudence -- the SDF appears to be genuinely moderate, the Syriac unit especially so. The Christian commanders speak of the need for reconciliation with Sunni Arabs, amnesties for ISIS conscripts, and building federated governance structures once ISIS is defeated. Time will tell whether this coalition will survive in the months ahead. Both Assad and Turkey's Erdogan will watch northern Syria closely -- and America's commitment there.