Mr. Sydney A. Seiler is the U.S. Forces Korea (USFK) Senior Analyst and Senior Defense Intelligence Expert for North Korea, serving as the principal advisor and senior expert on Korean Peninsula security issues to the USFK Commander and the U.S. Defense Intelligence Enterprise. Mr. Seiler served as the U.S. Special Envoy for Six Party Talks (2014-2015), where he coordinated U.S. diplomacy and policy on the DPRK, and led negotiations with North Korea. Prior to that, Mr. Seiler served as the director for Korea on the National Security Council (2011-2014). A member of the Senior National Intelligence Service, Mr. Seiler has over 37 years of experience focusing on Korean Peninsula affairs in a range of executive management, intelligence, and policy positions within the Office of the Director of National Intelligence, the Central Intelligence Agency Directorate of Analysis, CIA’s Directorate of Operations, CIA’s Open Source Center, and the National Security Agency.