The jihadi rebels who toppled Syrian President Bashar Assad say they want to build a unified, inclusive country. For Syria’s Kurdish minority, America’s closest ally in the country, the struggle for a new order is entering a potentially even more challenging phase.

For Syria’s Kurdish minority, America’s closest ally in the country, the struggle for a new order is entering a potentially even more challenging phase. Over the course of Syria’s civil war, Kurdish fighters have fended off an array of armed factions,