The U.S.-backed Syrian Democratic Forces said Saturday that the last territorial stronghold of the Islamic State has fallen. SDF fighters had been battling ISIS in the border town of Baghouz for several weeks before the announced defeat. The U.S. hailed the announcement, with Secretary of State Mike Pompeo adding the U.S. mission was ongoing. He said, “Our mission there hasn’t changed. We still have work to do to make sure radical Islamic terrorism doesn’t continue to grow.”