April 1 –15 –“OPERATION PEGASUS” and “TASK FORCE KILO”. Rockpile and Vandergrift Combat Bases to Khe Sanh, Quang Tri Province, I Corps - OPCON to 3rd Marine Division.

The purpose of this operation was to relieve the siege at Khe Sanh. After shattering the enemy's dreams of a Tet victory. The 1st Cavalry Division "Sky-Troopers" initiated “OPERATION PEGASUS” to relieve the 3,500 U.S. Marines and 2,100 ARVN soldiers besieged by nearly 20,000 enemy soldiers.

On 01 April 1968, the 3rd Brigade, making a massive air assault within 5 miles of Khe Sanh, were soon followed by the 1st and 2nd Brigades and three ARVN Battalions. Company "A", 2nd Battalion, 7th Cavalry led the way, followed by Company "C", 2nd Battalion, 7th Cavalry.

After four days of tough fighting, they marched into Khe Sanh to take over the defense of the battered base. Pursuing the retreating NVA, the 1st Battalion, 12th Cavalry recaptured the Special Forces camp at Lang Vei uncovering large stockpiles of supplies and ammunition. The final statistics of Operation Pegasus were 1,259 NVA KIAs and more than 750 weapons captured.