Honorable Marcel Lettre
Former Under Secretary of Defense for Intelligence
2020 Virtual SO/LIC
Prior to joining Lockheed Martin in 2017 where he supports work for the US Intelligence Community, Marcel was Under Secretary of Defense for Intelligence, the top intelligence advisor to the Secretary of Defense and the top defense advisor to the Director of National Intelligence.
His responsibilities included overseeing about 100,000 people and $17 billion across nine defense intelligence and security organizations, key foreign defense intelligence relationships, defense intelligence support to current operations, and development of innovative new defense intelligence capabilities. His team had a particular emphasis on driving seamless integration of intelligence and SOF operations in counterterrorism, most notably in counter-ISIS operations, and in new classified capabilities and operational approaches for addressing challenges from China, Russia, Iran and North Korea.
Marcel’s Pentagon service under four Secretaries of Defense also included serving as Deputy Chief of Staff to Secretary Leon Panetta and Principal Deputy Assistant Secretary of Defense for Legislative Affairs. In Marcel’s nearly two decades of government service, he also served as national security advisor to the Senate Majority Leader and on the professional staff of the House Permanent Select Committee on Intelligence.
Marcel is a member of the Council on Foreign Relations and a board member of the Intelligence and National Security Alliance. He holds a bachelors degree from the University of the South, Sewanee, Tennessee and a masters degree from the Harvard Kennedy School of Government
Marcel’s interests include skiing and running trail ultramarathons. Some years ago, he also backpacked the full 2,100-mile-long Appalachian Trail from Maine to Georgia.