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William K Lietzau

Vice President of Governance & Institutional Development, PAE

William K. Lietzau was appointed as the Deputy Assistant Secretary of Defense for Detainee Policy on 16 February 2010. In this capacity, he is responsible for developing policy recommendations and co-ordinating global policy guidance relating to individuals captured or detained by the Department of Defense, as well as for developing and co-ordinating global policy guidance regarding Rule of Law initiatives. Mr. Lietzau is a retired Marine Corps officer who served primarily as a judge advocate. His most recent assignment was at the White House as Deputy Legal Adviser to the National Security Council where he addressed a variety of legal issues dealing with subjects such as international criminal law, counter-narcotics, interdictions, piracy, counter-terrorism, weapons of mass destruction, non-proliferation, missile defence, foreign assistance, and treaty implementation. Mr. Lietzau was initially trained as an infantry officer in the Marine Corps. His first assignment was with Company G, 2nd Battalion, 3rd Marine Regiment in Kaneohe, Hawaii where he served as a Rifle Platoon Commander, Executive Officer, and Company Commander. As a judge advocate in the Marine Corps, he was stationed in Japan, Germany, and numerous locations within the United States. His criminal law experience includes service as a Prosecutor, Defence Counsel, Military Judge, and Deputy Chief Judge of the Navy-Marine Corps Trial Judiciary. He also served as a Special Assistant U.S. Attorney and headed the Navy and Marine Corps’ Appellate Government practice. As a legal adviser, he served as Staff Judge Advocate to United States European Command, Chief of the Law of War Branch for the Department of the Navy’s International Law Division, Deputy Legal Adviser to the Chairman of the Joint Chiefs of Staff, and Special Adviser to the General Counsel in the Office of the Secretary of Defence. Mr. Lietzau also has served on several United States delegations in multilateral treaty negotiations. He earned his B.S. in Political Science from the United States Naval Academy and his J.D. from Yale University. He also holds an LL.M. from the Judge Advocate General’s School, U.S. Army and an M.S. in National Security Law from the National War College.


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Publications and Multimedia
Foreign Government Partnerships - Podcast
International & National Security Law Podcast
March 15, 2017