James Dobbins (Georgetown School of Foreign Service) is director of the International Security and Defense Policy Center at RAND. A veteran diplomat who has held senior White House and State Department positions under four presidents, he most recently served as the Bush administration's special envoy for Afghanistan. He served as U.S. special envoy for Kosovo, Bosnia, Haiti, and Somalia. Ambassador Dobbins has held a variety of State Department and White House posts, including Assistant Secretary of State for Europe, Special Assistant to the President for the Western Hemisphere, Special Advise...