Although the 1st Armored Division did not participate as a division in the Vietnam War, there were two units, Company A, 501st Aviation and 1st Squadron, 1st Cavalry, that served in Vietnam. Both earned Presidential Unit Citations, and 1-1 Cavalry received two Valorous Unit Awards and three Vietnamese Crosses of Gallantry. Neither unit was officially detached from the 1st Armored Division thus veterans of both units may wear the division's patch as a combat patch. In 1967 the 198th Infantry Brigade was formed from three of the division's infantry battalions and deployed from Fort Hood to Vietnam. After the war, two of the three battalions, 1-6 Infantry and 1-52 Infantry, returned to the 1st Armored Division.