Conversation so far:
what was Robert Mueller's early life like?
Mueller was accepted for officer training in the United States Marine Corps in 1968, attending training at Parris Island, Officer Candidate School, Army Ranger School, and Army jump school.
Where was he born?
CANNOTANSWER.
Did he have any conflicts in his career?
In July 1968, he was sent to South Vietnam.
Are there any other interesting aspects about this article?
he earned the Bronze Star with 'V' distinction for combat valor for rescuing a wounded Marine under enemy fire during an ambush.
What was his personal life like?
CANNOTANSWER.

Question: Did he ever retire from any positions?
Self-contained rewrite: Did Robert Mueller ever retire from any positions?