Distinctive Unit Insignia. Description: A Silver metal and enamel device 1 3/16 inches (3.02 cm) in height overall consisting of a shield blazoned: Azure, a fleur-de-lis Argent between two oak trees eradicated in fess Or; on a canton of the second (Argent) a boar's head erased Sable (for the 30th Infantry) and for unofficial use pendant from the escutcheon a croix-de-guerre with Gilt Star Proper. Above the shield from a wreath of the colors (Argent and Azure) a falcon's head erased Or, in the bill an ivy leaf Vert. Below the shield a Black scroll inscribed "D'UNE VAILLANCE ADMIRABLE" in Silver letters.
             Symbolism: The shield is blue for Infantry. The fleur-de-lis from the arms of Soissons and the two trees representing the Grove of Cresnes, the capture of which was the regiment's first success, are used to show service in the Aisne-Marne campaign. The boar's head on the canton is from the crest of the 30th Infantry and indicates that this regiment was organized with personnel from the 30th. The falcon's head for Montfaucon in the Meuse-Argonne, holding in his bill an ivy leaf from the shoulder sleeve insignia of the 4th Division, to which the 39th was assigned during World War I. The motto is a quotation from the French citation awarding the Croix de Guerre with Gilt Star to the regiment for service in World War I.
             Background: The distinctive unit insignia was approved on 31 January 1941.    

Coat of Arms.
             Blazon:
                     Shield: Azure, a fleur-de-lis Argent between two oak trees eradicated in fess Or; on a canton of the second a boar's head erased Sable. (And for informal use, pendant from the escutcheon a French Croix de Guerre with Gilt Star Proper).
                     Crest: On a wreath of the colors Argent and Azure a falcon's head erased Or, in the bill an ivy leaf Vert.
                     Motto: D'UNE VAILLANCE ADMIRABLE (With a Military Courage Worthy of Admiration).
            Symbolism:
                     Shield: The shield is blue for Infantry. The fleur-de-lis from the arms of Soissons and the two trees representing the Grove of Cresnes, the capture of which was the regiment's first success, are used to show service in the Aisne-Marne campaign. The boar's head on the canton is from the crest of the 30th Infantry and indicates that this regiment was organized with personnel from the 30th.
                     Crest: The falcon's head for Montfaucon in the Meuse-Argonne, holding in his bill an ivy leaf from the shoulder sleeve insignia of the 4th Division, to which the 39th was assigned during World War I. The motto is a quotation from the French citation awarding the Croix de Guerre with Gilt Star to the regiment for service in World War I.
                     Background: The coat of arms was approved on 25 April 1925.