The Battle of Lang Vei (Vietnamese: Trận Làng Vây) began on the evening of 6 February and concluded during the early hours of 7 February 1968, in Quảng Trị Province, South Vietnam. Towards the end of 1967 the 198th Tank Battalion, Vietnam People's Army (VPA) 203rd Armored Regiment, received instructions from the North Vietnamese Ministry of Defense to reinforce the 304th Division as part of the Route 9-Khe Sanh Campaign. After an arduous journey down the Ho Chi Minh trail in January 1968, the 198th Tank Battalion linked up with the 304th Division for a major offensive along Highway 9, which stretched from the Laotian border through to Quảng Trị Province.