The 415th Military Intelligence Battalion Distinctive Unit Insignia was approved on 5 February 1991. Its shield has a background of oriental blue, the branch color of the Military Intelligence Corps, with a black fess (horizontal band) containing the image of a tiger that represents preparedness, strength, and military power. Behind the fess is a fleur-de-lis to symbolize the organization’s home state of Louisiana. A key on the fleur-de-li evokes the image of unlocking information; its red color is for courage and vitality in doing so. “Passe Partout,” the unit motto, is French for “Pass Into Everywhere” or “Pass Through Everywhere” (if the original language words are hyphenated it becomes “Master Key.”Also known as a unit crest or DUI, a 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 (ASU, Enlisted only) with the base of the insignia toward the outside shoulder seam. DUIs are not worn on the Dress variations of either uniform, however.
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A unit in the Louisiana Army National Guard, the 415th Military Intelligence Battalion is assigned to the 139th Regional Support Group was organized and federally recognized on l December 1989 in the Louisiana Army with Headquarters at Baton Rouge; its current Headquarters are located at Carville, Louisiana. It was awarded a Meritorious Unit Commendation in February 2012 for its service in Afghanistan between January and November 2011 providing interrogation and debriefing support essential to Combined Joint Interagency Task Force-435’s counterinsurgency operations in Afghanistan.
The Battalion was most recently in the news when its team of four Soldiers took second place overall and first in the National Guard in the Interrogation Show and Rodeo 23 competition held at the U.S. Army Intelligence and Security Command’s Intelligence Training Center at Camp Bullis in San Antonio, Texas, September 10-14, 2023 The event is a multi-component, multi-echelon event created to challenge intelligence Soldiers in leadership, tactical and technical tasks in a simulated large-scale combat operating environment.