On 21 March the PAVN ambushed a supply convoy 300m south of Gio Linh destroying six trucks but they were driven off by the convoy's security escort and Company I, 3rd Battalion, 4th Marines which was providing base security at Gio Linh.

Meanwhile, 3/3 Marines engaged an entrenched PAVN company forcing them to withdraw leaving 28 dead.

The two Marine battalions pursued the retreating PAVN losing contact with them on 26 March as they crossed the DMZ.

[1]: 18–9  Second lieutenant John P. Bobo would be posthumously awarded the Medal of Honor for his actions during this battle.

[1]: 19 This article incorporates public domain material from websites or documents of the United States Marine Corps.