Having been battered in the Khong Sedone fighting in Operation Black Lion leaving Salavan to the Royalists .
Operation Black Lion is the PAVN 9th Regiment retreated eastwards from the Operation Black Lion V forces .
Having been battered in the Khong Sedone fighting in Operation Black Lion , the PAVN 9th Regiment retreated eastwards from the Operation Black Lion V forces , leaving Salavan to the Royalists .