[1] Landing Zone Pedro was first established by the 5th Battalion, 7th Cavalry Regiment in January 1968 for use during Operation Pegasus.

By January 1972 the ARVN 3rd Division had assumed responsibility for the area north of Highway 9.

An armored task force of 8 M48s and 12 M113s from the ARVN 20th Tank Battalion were despatched from Ái Tử to support the Marines at Pedro.

At the same time a flight of Vietnamese Air Force Douglas A-1 Skyraiders arrived overhead and destroyed 5 tanks.

[2]: 68–9  When the ARVN armor arrived they destroyed five T-54s for no losses and drove one captured T-54 back to Ái Tử.