He served for 25 years in the United States Marine Corps , concluding his career as the Staff Judge Advocate for U.S. Southern Command and retiring as a colonel .
Roberts received the Exceptional Public Service Award from the Department of Defense .
Roberts served for 25 years in the United States Marine Corps , concluding Roberts ' career as the Staff Judge Advocate for U.S. Southern Command and retiring as a colonel .
Roberts received the Exceptional Public Service Award from the Department of Defense .