Infantry on 12 August. It was sent to Vietnam in January 1966 and it was one of the few mechanized units to serve in that war. The 1st Battalion, 5th Infantry won a Valorous Unit Award as part of the 2nd Brigade Task Force, 25th Infantry Division, which: distinguished itself by extraordinary heroism in ground combat against the Viet Cong in the Republic of Vietnam during the period January through April 1966. Ordered to secure a base of operations for itself and the remainder of the 25th Infantry Division in the vicinity of the town Tan An Hoi in the Cu Chi District of Vietnam, the Brigade Task Force embarked on 66 days of continuous combat operations in a completely Viet Cong dominated, heavily entrenched and fiercely defended area. On January 1966, combat operations began to seize, clear and secure the area selected for a base of operations. For the initial four days, brigade combat elements moved forward against devastating automatic weapons and continual harassing sniper fire, well established mine fields and vast underground systems of tunnels, trenches, spider holes and fortifications unrivaled in Vietnam. Displaying extraordinary heroism and unwavering determination, task force elements methodically cleared the area of a fanatical enemy force that was manning the fortifications. This entire action was characterized by numerous acts of personnel sacrifice and heroism. During the period 30 January to 5 April, the Brigade conducted eleven major operations against the Viet Cong with battalion or larger sized forces engaged in fierce battle against a hostile enemy. On 5 April 1966, after 66 days of continuous combat, the Brigade had seized, cleared and secured the base of operations and surrounding area in the vicinity of Cu Chi, Republic of Vietnam. A total of 449 Viet Cong had been killed by body count. Viet Cong activities throughout the Cu Chi District were severely disrupted and the Viet Cong greatly discredited in the eyes of the local populace. During those momentous 66 days, the Brigade displayed utmost courage and indomitable spirit, and as a unit it demonstrated extraordinary heroism as it unwaveringly and unceasingly pitted itself against hard core, experienced, and entrenched and determined enemy forces. The indomitable spirit and extraordinary heroism with which the 2nd Brigade Task Force engaged, battled and defeated a fortified and determined enemy during this period of continuous combat operations is in keeping with the finest tradition of the United States