As the recent horrific bombings show, there are no easy solutions in Afghanistan. The conflict is the United States’ longest-running war, and despite the billions of dollars that have been spent in foreign support since 9/11, the Taliban continues to pose a major security threat. The White House is in the midst of a review of its Afghanistan policy and will decide later this year whether to increase the number of US troops in the country. Carnegie expert Ashley Tellis has analyzed the issue for many years, and discusses the choices facing the White House with Tom Carver. Ashley Tellis served as senior adviser to the ambassador at the U.S. Embassy in New Delhi. He also served on the U.S. National Security Council staff as special assistant to President George W. Bush and senior director for strategic planning and Southwest Asia. He is the author of India’s Emerging Nuclear Posture (RAND, 2001) and co-author of Interpreting China’s Grand Strategy: Past, Present, and Future (RAND, 2000). Tellis holds the Tata Chair for Strategic Affairs.​ (More on Tellis - http://carnegieendowment.org/experts/198)