The withdrawal of US troops from northern Syria has had grave repercussions for the security and stability of the entire region. The Turkish military has invaded northern Syria, killing dozens of Kurdish civilians, and forcing over 200,000 Kurds to flee. In the absence of US troops, Russian and Syrian troops have rushed in to fill the power vacuum. Meanwhile, hundreds of ISIS fighters have escaped detention. Brett McGurk, distinguished lecturer at Stanford University and former special presidential envoy for the Global Coalition to Defeat ISIS, and David Phillips, director of peace-building and rights at Columbia University and former senior advisor to the U.S. Department of State, make sense of the cascading impacts with World Affairs co-host Ray Suarez.