The 5th Field Artillery Regiment was first constituted 25 January 1907 and was subsequently organized at Fort Leavenworth on 31 May 1907 using new and existing units, including the 2nd Battalion that was stationed in the Philippine Islands at the time. Battery D of the newly organized regiment traced its lineage back to Alexander Hamilton’s New York Provincial Company of Artillery, making it the only Regular Army with roots that dated back to the Revolutionary War. Assigned to the 1st Division, 5th Field Artillery (comprising 1st and 2nd Battalions) took part in an astonishing seven campaigns during World War I.
Today, 5th Field Artillery Regiment has just one active battalion: the 1st Battalion is assigned to the 1st Brigade Combat Team, 1st Infantry Division and headquartered at Fort Riley, Kansas.
For its Distinctive Unit Insignia (also called DUI or "unit crest") the 5th Field Artillery Regiment looked to its most famed member, Alexander Hamilton, and adopted the design of the Hamilton family crest for its insignia, complete with the motto “Faithful and True.” The insignia was first approved for wear on 21 January 1924.
♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦
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 (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.
Full guidance on wear of the DUI is found in DA Pamphlet 670-1,
Section 21-22, "Distinctive unit insignia" and 21–3(d) and (e),
"Beret" and
"Garrison Cap," respectively.