following the tet offensive in february 1968, the division artillery dispatched 2-321 with the 3d brigade to vietnam- the battalion deployed by battery with the brigade's infantry battalions from 16–27 february 1968. the 2-321 supported the golden brigade's operations in vietnam for over 18 months, redeploying in october and november 1969. during the deployment of 2-321, the division artillery created an additional battalion, 3rd battalion (airborne), 320th field artillery, to support a provisional 4th brigade formed by the division. neither 3-320 nor 4th brigade ever achieved full strength or operational readiness, and 3-320 inactivated on 15 december 1969.