Ryan Clark Crocker (born June 19, 1949) is a retired American diplomat who served as a career ambassador within the United States Foreign Service. A recipient of the Presidential Medal of Freedom, he served as United States ambassador to Afghanistan (2011–2012), Iraq (2007–2009), Pakistan (2004–2007), Syria (1998–2001), Kuwait (1994–1997), and Lebanon (1990–1993). In January 2010, he became dean of Texas A&M University's George Bush School of Government and Public Service. Wikipedia