1st Mission Support Command

The shoulder sleeve insignia was originally authorized for the Puerto Rican Department on 9 September 1942.

Issuing from sinister base of a yellow shield edged with a 1/8 inch (.32cm) red border, 3 inches (7.62 cm) in height overall, with chamfered top corners a silhouette of the turreted battlement of Morro Castle in red, window yellow.

The turreted battlement of Morro Castle has long been used for identification of Army units in Puerto Rico and is a famous landmark in San Juan, Puerto Rico.

The shoulder sleeve insignia was originally authorized for the Puerto Rican Department on 9 September 1942. It was redesignated for the Antilles Department on 3 April 1944 and on 2 February 1948, the insignia was redesignated for the U.S. Army Forces, Antilles. The insignia was redesignated for the 7581st USAR Garrison on 3 November 1981 and redesignated to the U.S. Army Reserve Forces Puerto Rico on 18 December 1990. The insignia was cancelled and authorized for the 65th U.S. Army Reserve Command on 28 September 1992. The shoulder sleeve insignia was redesignated for the 65th Regional Support Command effective 28 March 1998. It was redesignated for the 65th Regional Readiness Command effective 16 July 2003. It was redesignated for the 166th Support Group on 27 February 2007. The insignia was redesignated for the 1st Support Command on 7 February 2008. (TIOH Drawing Number A-1-669)

The distinctive unit insignia was originally authorized for the 7581st U.

A gold color metal and enamel device 1 1/8 inches (2.86cm) in height overall consisting of a gold disc bearing a red silhouette on the turreted battlement of Morro Castle encircled by a red motto scroll inscribed " SENTRIES OF PEACE" in gold letters arching from the sides to the top between gold stars at the ends of the scroll; issuing from a semicircular field of four horizontal blue wavy bars charged with a gold cross potent.

The turreted battlement of the Morro Castle is associated with the organization and is a landmark in San Juan, Puerto Rico. The two stars represent the United States and Puerto Rico and their tradition of cooperation and communication. Puerto Rico's history and her early connections with Spain are recalled by the cross potent, a symbol long associated with Spain and used on the Seal of Puerto Rico. The wavy bars represent the sea and emphasize the location of Puerto Rico. Red and blue symbolize vigilance and peace, respectively, and reflect the spirit of the motto.

The distinctive unit insignia was originally authorized for the 7581st U.S. Army Garrison in 22 October 1986. It was redesignated for the U.S. Army Reserve Forces Puerto Rico with the description and symbolism revised on 31 December 1990. On 28 September 1992, the insignia was redesignated for the 65th U.S. Army Reserve Command. It was redesignated for the 65th Regional Support Command effective 29 March 1998. The insignia was redesignated for the 65th Regional Readiness Command effective 16 July 2003. It was redesignated for the 1st Mission Support Command on 7 February 2008.

A gold color metal and enamel device 2 inches (5.08 cm) in height consisting of a design similar to the shoulder sleeve insignia.