A gold color metal and enamel device 1 3/16 inches (3.02 cm) in height overall consisting of a white alerion on a scarlet disc centered upon a blue equilateral triangle with notched sides, all in front of two white lightning flashes in a V form contained at top and bottom by a continuous scarlet scroll inscribed below with the word "AUDACITER" in gold.
The white alerion on scarlet is from the arms of Lorraine Province in France where the organization served in three World War I campaigns. In World War II, the unit participated in the Ardennes-Alsace, Rhineland and Central Europe campaigns indicated by the three points, in the color blue for Infantry and for the area of the Rhine River. The white flashes and the red of the scroll allude to the Division shoulder sleeve insignia.
The distinctive unit insignia was originally approved for the 78th Division (Training) on 21 December 1971. It was redesignated effective 1 October 1993, for the 78th Division (Exercise) with the description revised. It was redesignated effective 17 October 1999, for the 78th Division (Training Support). The insignia was redesignated effective 1 October 2009, for the 78th Training Brigade. It was redesignated effective 18 September 2010, for the 78th Training Division.