Ambassador Marc Grossman is a vice-chairman of The Cohen Group. A US Foreign Service Officer for 29 years, he retired in 2005 as undersecretary of state for political affairs. The ambassador was the US Special Representative for Afghanistan and Pakistan, 2011-2012, and a Kissinger Senior Fellow at Yale in 2013. The author wishes to thank Kate Fernandez, Tom West, Teddy Wessel, and Dave Rank for their support producing this essay. Reprinted with permission from YaleGlobal Online http://yaleglobal.yale.edu.libproxy1.nus.edu.sg