to pursue Pancho Villa, on 12 March 1916. Major Robert L. Howze, Commander, 2nd Squadron, led the "last mounted charge" on 5 May 1916, placing the Eaglehorse Squadron action as a milestone in military history. The Blackhorse Regiment patrolled the U.S.-Mexican border from 1919 through 1942. The regiment received the name "Blackhorse" and a distinctive coat of arms while stationed at the Presidio of Monterey. World War II The regiment inactivated as a "horse regiment" on 15 July 1942 at Fort Benning, Georgia. The Headquarters and Headquarters Troop was redesignated on 19 April 1943 as the Headquarters and Headquarters Troop, 11th Cavalry Group Mechanized. The former squadrons of the 11th Cavalry were sent to fight with the 10th Armored Division and the 90th Infantry Division overseas. The new HHT, 11th Cavalry Group Mechanized drew new squadrons, the 36th and 44th, and also received an Assault Gun Troop (Howitzer Battery). After guarding the US southeastern coast from March 1944 until 1 June 1944, the group moved to Camp Gordon, Georgia to begin training for overseas deployment, The regiment arrived in the United Kingdom on 10 October 1944. The regiment entered France on 23 November 1944. Moving through France and Germany, the Blackhorse was assigned to the Ninth US Army and attached to XIII Corps, whose flank the Blackhorse screened during the corps' sweep from the Roer to the Rhine. 3rd Squadron Post-Vietnam, the 3rd Squadron ("Workhorse") was based at McPheeters Barracks in Bad Hersfeld, Germany, about 40 kilometers north of Fulda. The 3rd Squadron was organized as an armored cavalry squadron like the 1st and 2nd Squadrons. HHT and I, K, and L Troops, Howitzer Battery, as well as M Company were organic to the squadron. Attached was the 58th Engineer Company. Bravo Battery, 2nd Battalion, 2nd Air Defense Artillery was also headquartered with the squadron. In the field, the attached units of the regiment like the 58th Engineer Company usually operated over a wide area, with smaller detachments dedicated to supporting the armored cavalry squadrons of the regiment. 4th Squadron The 11th Armored Cavalry Regiment (ACR) arrived in Viet Nam in September 1966, the Air Cavalry Troop (ACT), organic to the regiment, arrived in December of the same year with a complement of UH-1C Gunships and UH-1D Command and Control "slicks". Early in January 1967, ACT was flying combat support for the regiment's missions. It was after this time that