The southern tip of T-Bone which contained the outposts Eerie and Arsenal (38°15′25″N 127°02′46″E / 38.257°N 127.046°E / 38.257; 127.046), lay approximately 2 miles (3.2 km) northeast of Pork Chop Hill.

The battle continued on the morning of 22 March with the PVA forces penetrating the outpost's perimeter and eventually overran Manley's men.

On 21 May 1952, Colonel Abcede ordered Major Felizardo Tanabe, the battalion's operations officer, to prepare the final assault on the PVA position after several attempts to capture the outpost.

The platoon was led by a young Filipino officer, a 1950 graduate of West Point's United States Military Academy, 2nd Lieutenant Fidel V. Ramos (future President of the Philippines).

Ramos divided the assault team into four groups of snipers, riflemen, scouts and forward observers, each with a radio operator, a messenger and a medic.

The platoon crawled through rice paddies and scattered trees for two hours before it reach an irrigation ditch, about 400 meters from the top of the hill.

After the bombardment, Ramos' men seized the front part of the trench network after discovering a hole in the blasted stack of barbed wire.

Close-quarter fighting raged as the retreating PVA fought back but the advancing Filipinos were gaining the upper hand.

The assault had lasted for two hours, Ramos' men suffered one injury while the PVA had lost an estimated 1100 dead, 2540 wounded, whether from the supporting artillery, tanks and air strikes could not be determined.