The Mount Data Peace Accord is a peace deal signed between the government of the Philippines and the Cordillera People's Liberation Army on September 13, 1986, ending hostilities due to the latter's campaign for greater autonomy for the Cordillera region.
[2] An armed movement in the Cordillera region that advocated for greater autonomy for people in the area arose from the awarding of 197,346.25 hectares (487,653.2 acres) of land, which covers parts of Abra, Mountain Province, Kalinga-Apayao, Ilocos Norte, and Ilocos Sur, to the Cellophil Resources Corporation (CRC) and Cellulose Processing Corporation (CPC), which mostly affected the Tinguian or Itneg people of Abra.
[2] Several ethnic groups of the Cordillera launched an organized effort to air their grievances against CPC through dialogue, although this was met by suppression by the Marcos administration.
Some Tinguian, including Conrado Balweg, joined the communist rebellion led by the New People's Army (NPA).
[4] On September 13, 1986, the Cordillera Bodong Administration–Cordillera People's Liberation Army (CBA–CPLA) and the government of the Philippines made a "sipat" (ceasefire) at the Mt.