In July 1965, the division colors moved to
Fort Benning and underwent reorganization as an
airmobile unit. No soldiers moved, and the soldiers remaining in Korea put on the patch of the
2nd Infantry Division. The brigade was filled with soldiers from the 2nd Infantry Division and the
11th Airborne Division. The 3rd Brigade, 1st Cavalry Division (Airmoble) sailed from Charleston, South Carolina to
Qui Nhơn,
Republic of Vietnam on 17 September 1965. The first major action undertaken by the brigade began on 10 October 1965, and was followed by participation in the
Battle of Ia Drang (14 November, 15,17) officially known as the Pleiku Campaign. The 1st Cavalry Division (Airmobile) received the
Presidential Unit Citation for the period 23 October to 26 November 1965. While the rest of the division left South Vietnam at the end of April 1971, the 3rd Brigade was formed into a separate unit and assumed operational control of the old 1st Cavalry Division area of operations in South Vietnam until 1972. On 20 June 1972 in a ceremony attended by
COMUSMACV General
Creighton Abrams the brigade stood down and left South Vietnam for Fort Hood, Texas, to rejoin the 1st Cavalry Division. When its colors arrived at Fort Hood on 29 June 1972, the unit officially became the "Greywolf" Brigade, named after General
George Crook, considered the U.S. Army's greatest Indian fighter. The brigade underwent a change from an airmobile configuration to an infantry brigade (heavy or mechanized infantry). The "Greywolf" Brigade remained with the division until its inactivation in 1980. The 3rd Brigade was composed of the following elements: • HHC, 3d Brigade • 1st Battalion, 7th Cavalry • 2nd Battalion, 7th Cavalry • 5th Battalion, 7th Cavalry (added while the unit was in South Vietnam) • F Troop, 9th Cavalry == Post Operation Desert Storm ==