 He served as the 31st Assistant Commandant of the Marine Corps from 2008 to 2010, and was the first Marine Corps aviator to serve as commandant.The son of a career navy pilot, Amos was born on November 12, 1946, in Wendell, Idaho.He graduated from the University of Idaho in 1970 with a Bachelor of Science degree in finance and economics, and was commissioned as an ensign in the United States Navy through Naval Reserve Officers Training Corps on January 23, 1970.