Seth A. Johnston is a military officer, scholar, and expert in transatlantic affairs. Lieutenant Colonel in the U.S. Army, he currently serves in a diplomatic role supporting defense cooperation between the United States and countries of the European Union. Formerly a commander of U.S. and NATO troops in Europe and Afghanistan, his military service also includes experience at the Pentagon, NATO’s Supreme Headquarters Allied Powers Europe (SHAPE), and the Department of State in Washington DC. Dr. Johnston has also held academic faculty or fellowship appointments at Georgetown University (Washington), Heidelberg University (Germany), Harvard University’s faculty of arts and sciences, Harvard’s Belfer Center for Science and International Affairs, the Council on Foreign Relations (New York), and U.S. Military Academy at West Point. His book How NATO Adapts was the #1 most requested book at the NATO Library in Brussels. He received his doctorate in international relations from Oxford University, where he was a British Marshall scholar. His military awards and decorations include the Bronze Star Medal, NATO Medal, Combat Action Badge and Parachutist Badge.