U.S. policy and troops in Afghanistan - Ronald E. Neumann

Afghanistan lacks a reasonably firm state that can manage the large war that will continue after our combat forces are withdrawn. Without some continuing U.S. support, civil war and fragmentation are likely to engulf Afghanistan, destabilizing Central Asia as neighboring powers are drawn to safeguard their own interests and providing a breeding ground for extremism. - US policy and troops in Afghanistan - washingtonpost