On 27 January 1968 COMUSMACV General William Westmoreland ordered the establishment of a new MACV/ARVN headquarters (known as MACV Forward) at Phu Bai Combat Base to control the war in Quảng Trị and Thừa Thiên Provinces.

A Forward Air Controller (FAC) saw the firing position 4 miles (6.4 km) northeast of Gio Linh and directed artillery and naval gunfire onto the location, causing a secondary explosion.

[3]: 45–6  On 23 March at 22:30 a Marine forward observer reported a PAVN force moving 8 miles (13 km) northwest of The Rockpile and directed artillery fire onto the location, causing nine secondary explosions.

The unit was supported by armor, artillery, helicopter gunships and airstrikes and the PAVN withdrew at 18:30, leaving 120 dead and seven individual and three crew-served weapons; U.S. losses were 14 killed.

[6]: 43  On 24 May at 07:15 a forward observer saw five PAVN 3 miles (4.8 km) north-northeast of Con Thien and called in naval gunfire from the USS Saint Paul onto the position, killing four and destroying a bunker.

[8]: 44–5 On 16 June at 16:15 an aerial observer received fire 7 miles (11 km) northwest of the Rockpile and directed artillery onto the position, resulting in one secondary explosion, six bunkers destroyed and one PAVN killed.

[9]: 52  On 17 June at 11:25 an aerial observer received fire 2 miles (3.2 km) northwest of Gio Linh and directed airstrikes onto the position, causing a secondary explosion and killing three PAVN.

At 17:10 an aerial observer received fire 4 miles north of Gio Linh and directed naval gunfire from the USS Saint Paul onto the position, causing a secondary explosion and destroying four bunkers.

At the same time another aerial observer saw ten PAVN 7 miles west of Con Thien and directed artillery fire onto the location, causing three secondary explosions.

[13]: 51  On 18 August at 14:20 an aerial observer received fire 2 miles (3.2 km) northeast of Gio Linh and directed airstrikes onto the position, causing a secondary explosion and destroying two bunkers.

[13]: 63  On 22 August at 04:10 a mechanized unit of the 1st Brigade in a night defensive position 4 miles (6.4 km) west of Gio Linh received mortar fire followed by a ground attack.

[13]: 65–6  On 23 August at 12:10 a unit of the 3rd Marines operating 5 miles northwest of the Rockpile was hit by 30 82 mm mortar rounds, causing minimal damage, artillery was directed onto the firing position.

[13]: 69 On 24 August at 17:00 a mechanized unit of the 1st Brigade operating 3 miles (4.8 km) southwest of Con Thien found 15 PAVN dead, all had been killed by artillery fire three days previously.

[13]: 82–3  On 30 August at 15:35 an aerial observer received fire 6 miles (9.7 km) northeast of Gio Linh, artillery and naval gunfire from the USS Boston was directed onto the location, causing two secondary explosions and destroying seven bunkers and ten huts.

[14]: 25 On 10 September at 21:30 a 3rd Marines reconnaissance team ambushed a PAVN rice-gathering force 3 miles (4.8 km) southwest of Quảng Trị, killing all five and capturing four individual weapons.

[15]: 50 On 19 September at 05:00 a unit of the 3rd Marines in a night defensive position 2 miles (3.2 km) northwest of the Rockpile was attacked by hand grenades and later by RPGs and small-arms fire from a PAVN company.

[15]: 61 On 23 September at 21:20 a unit of the ARVN 2nd Regiment in position 4 miles (6.4 km) east of Gio Linh was hit by 40 82 mm mortar rounds, naval gunfire from USS Boston was directed onto the firing location.

[16]: 30 On 17 October at 13:40 a unit of the 3rd Brigade, 101st Airborne patrolling 6 miles (9.7 km) west of the Rockpile found a munitions cache containing 317 82 mm mortar rounds, 22 anti-tank mines and 125 hand grenades.

[16]: 46 On 1 December at 10:00 an aerial observer saw a PAVN platoon 4 miles (6.4 km) north-northwest of Con Thien and directed artillery fire onto the location, causing a secondary explosion and destroying three bunkers.

[17]: 6  On 3 December at 19:20 helicopter gunships from the air cavalry squadron of the 101st Airborne attacked ten PAVN 9 miles (14 km) south of Khe Sanh, killing eight.

[22]: 52  On 31 March at 17:50 a light observation helicopter from the air cavalry squadron of the 101st Airborne attacked a PAVN force 25 miles (40 km) west-southwest of Quảng Trị.

[25]: 58  On 25 April a unit of the 1st Brigade in a night defensive position 1 mile (1.6 km) east of Con Thien received ten rounds of 60 mm mortar fire.

[25]: 65  On 28 April at 04:00 a U.S. artillery unit fired on a suspected PAVN location 8 miles (13 km) east of Quảng Trị and one round landed in a village, killing six Vietnamese civilians.

On 6 July in the afternoon, a Ranger unit from the 101st Airborne operating 13 km northwest of Khe Sanh engaged a PAVN infiltration group, killing ten with artillery and helicopter gunship support.

On 12 July at 08:00 31 km southwest of Quảng Trị a unit of the ARVN 1st Battalion, 1st Regiment on a search and-clear mission found 65 PAVN killed by air strikes 24-hours earlier.

On 3 August 5 km south-southwest of Cam Lo a PAVN force was observed by Troop C, 3/5th Cavalry Regiment, while in night defensive positions, and engaged with organic weapons, supported by tank fire, artillery and gunships.

[24]: E-19 On 7 September the ARVN 3rd Battalion, 3rd Regiment while on a sweep mission 24 km southwest of Quảng Trị found 21 PAVN killed by air the previous day.

[24]: E-19 On 8 October at 11:10 9 km southwest of Khe Sanh, helicopter gunships from Company C 3/17th Cavalry engaged forces from the Quảng Trị Rear Service, killing 26.

[24]: E-21 On 18 December 45 km west of Quảng Trị, elements of the 2/17th Air Cavalry, supported by helicopter flareships, engaged 15 PAVN from the 246th Regiment, killing ten.

An aerorifle platoon was landed in the area and engaged a PAVN force which withdrew, leaving seven dead and one radio; U.S. losses were one Kit Carson Scout killed.