Yeah.
According to his Wikipedia article (https://en.wikipedia.org/wiki/Ray_Mabus), Mabus served as a Surface Warfare Officer on the USS Little Rock (CLG-4) from 1970-1972. Technically, a Vietnam War veteran. Since he only served two years, he probably got an early out to attend law school.
Personally, I rate him a first class TURD for the damage he has done to the Naval Services and for the particular contempt his actions have shown to the Commandant of the Marine Corps and the Marine Corps generally. My hope is he will receive contempt in return and in full measure.
He is a thought control commissar.