https:// www.fbi.gov/history/directors/robert-s-mueller-iii
After college, he joined the United States Marine Corps, where he served as an officer for three years, leading a rifle platoon of the Third Marine Division in Vietnam. He is the recipient of the Bronze Star, two Navy Commendation Medals, the Purple Heart, and the Vietnamese Cross of Gallantry.
http:// www.esd.whs.mil/Portals/54/Documents/DD/issuances/dodi/135201_dodi_2016.pdf
f. Mobilization P riority.
The priority for use of retired military members will be:
(1) Use by their own Service.
(2) Use by another Service, Defense Agency
, or DoD Field Activity
(3) Use by a civilian federal department or agency.
(4) Any other approved use.