In the space of two days, the Syrian military, aided by tribal militia, has driven Kurdish forces from wide swathes of northern Syria that they have held for more than a decade.

The Syrian army continued its push into Kurdish-held territory on Saturday, despite U.S. calls to halt its advance in towns ...

Government troops drew closer to Raqqa, the largest city overseen by the Kurds, raising U.S. concerns about the renewal of a ...