Seth A. Johnston is a military officer, scholar, and expert in transatlantic affairs. Lieutenant Colonel in the U.S. Army, he is former NATO task force commander in Afghanistan and a commander of U.S. Army troops in Belgium and Germany. His military service also includes experience at the Pentagon, NATO’s Supreme Headquarters Allied Powers Europe, and the Department of State in Washington DC. Dr. Johnston is also a visiting professor at Heidelberg University (Germany), and has held academic faculty or fellowship appointments at Georgetown University, Harvard’s faculty of arts and sciences, Harvard Kennedy School, the Council on Foreign Relations, 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 Marshall scholar.