Former Ambassador Kurt Volker is senior fellow and managing director of the Center on Transatlantic Relations at the Johns Hopkins University's School of Advanced International Studies. He is also a senior advisor at McLarty Associates, a Member of the Board of the Wall Street Fund, and a member of the Atlantic Council's Strategic Advisors Group. Prior to joining SAIS, Ambassador Volker was a career member of the U.S. Senior Foreign Service, with over 23 years of experience working on European political and security issues under five U.S. Administrations. He served as Ambassador to NATO from July 2008 to May 2009, straddling the transition from the Bush to the Obama Administration, and overseeing U.S. preparations for NATO's 60th Anniversary Summit in Strasbourg, France and Kehl, Germany. Prior to his service at NATO, Ambassador Volker served as Principal Deputy Assistant Secretary for European and Eurasian Affairs (2005-2008) and on the National Security Council staff (2001-2005). He worked for then-NATO Secretary General George Robertson, from 1999-2001, and for U.S. Senator John McCain as a Legislative Fellow from 1997-1998. His Foreign Service assignments included Brussels, Budapest, London, and several positions in Washington, including a year on detail in the U.S. Senate.