Robert Orton Work (born January 17, 1953) is an American national security professional who served as the 32nd United States Deputy Secretary of Defense for both the Obama and Trump administrations from 2014 to 2017. Prior to that, Work was the United States Under Secretary of the Navy from 2009 to 2013, and before that served as a colonel in the United States Marine Corps; Work retired in 2001 and worked as a civilian at the Center for Strategic and Budgetary Assessments (CSBA) and the George Washington University in various positions relating to military and strategic study. From 2013 to 2014, he was the CEO of the Center for a New American Security (CNAS). After his time as Deputy Secretary of Defense, he went on to serve on the Board of Raytheon. Early life and education Work was born in Charlotte, North Carolina. He attended the University of Illinois and earned a B.S. in Biology. Work later earned an M.S. in Systems Management from the University of Southern California; an M.S. in Space System Operations from the Naval Postgraduate School; and a master's degree in International Policy from the Paul H. Nitze School of Advanced International Studies at Johns Hopkins University. Military career Work's military service began while he was an undergraduate at the University of Illinois, where he was a member of the Naval Reserve Officer Training Corps. He was commissioned as a second lieutenant of the United States Marine Corps in September 1974. Work spent 27 years in the Marines, holding a variety of positions. He commanded an artillery battery, then an artillery battalion. He rose to become base commander of Camp Fuji; the first head of the Marine Corps' Strategic Initiatives Group, a small analytical group that provided advice directly to the Commandant of the Marine Corps; and, in his highest military posting, as Military Assistant and Special Aide to United States Secretary of the Navy Richard Danzig. Work's rank when he retired from the Marines in 2001 was colonel. Civilian career He joined the Center for Strategic and Budgetary Assessments (CSBA) as a senior fellow for maritime affairs. He later became the CSBA's vice president for strategic studies. He also took a position as an adjunct professor at George Washington University, teaching defense analysis and roles and missions of the armed forces. During this period, Work wrote and spoke extensively on naval and marine strategy. He