The Distinctive Unit Insignia (unit crest) of U.S Army Medical Department Activity, Fort Campbell was originally approved for the U.S. Army Hospital, Fort Campbell on 28 August 1970. It was given its current designation just under three years later on 23 August 1973.
A pennant of green, the color symbolizing wisdom, health, endurance, and regeneration, encircles the entire insignia, with the Medical Department’s motto “Preservation of Strength” inscribed in gold letters to denote excellence and high achievement.
Inside the oval is a gold and black background divided into eight segments. It is surmounted by a ship’s mast with gold rigging and a white sail with gold stripes containing a maroon, gold-trimmed Greek cross. A sail is an emblem of renewed and the journey that begins with revived health, and the cross on it is the traditional symbol of medical aid and assistance. Maroon and white are the colors used in Medical Department insignia and heraldry.
Gold and black in the background recall the coat of arms of the Campbell Clan, an allusion to Fort’s namesake William B. Campbell, 14th Governor of Tennessee (and the last Governor to come from the state’s Whig party).
Also known as a unit crest or DUI, the Distinctive Unit Insignia is worn by all Soldiers (except General Officers) in units that have been authorized to be issued the device. It is worn centered on the shoulder loops of the Army Green Service Uniform (AGSU) and the blue Army Service Uniform (Enlisted only) with the base of the insignia toward the outside shoulder seam.
Full guidance on wear of the DUI is found in DA Pamphlet 670-1,
Section 21-22, "Distinctive unit insignia."