After shelling for two days, approximately 600 People’s Army of Vietnam (PAVN) soldiers stormed the US base near Tây Ninh on 21 June 1969. The Tây Ninh Combat Base, 50 miles northwest of Saigon, had been in operation since April 1966, when it served as the base for the 196th Light Infantry Brigade, a US Army Reserve unit directed at military training.
PAVN forces launched six attacks on Tây Ninh city and the surrounding villages, displacing roughly 1,000 civilians as allied and communist troops fought in the city streets. Eventually, PAVN forces were repulsed, suffering 194 dead compared to only 10 US soldiers.
The US victory was an important one. In April 1970 Tây Ninh Combat Base was used as a staging area for US units participating in the Cambodian Campaign for attacks west into the Parrot’s Beak and north into the Fish Hook, areas on South Vietnam’s border with Cambodia.
The base was handed over to the Army of the Republic of Vietnam (ARVN) in September 1970 and was used by the ARVN 25th Division.[