The chairman of the NKCP was Wen Ming Chyuan and the party enjoyed close links with the People's Republic of China.

[3] According to the Japanese academic Fujio Hara, the NKCP's two main military formations were the Sarawak People's Guerrilla Force (SPGF) or Pasukan Gerilya Rakyat Sarawak (PGRS), and the North Kalimantan People's Army (NKPA) or the Pasukan Rakyat Kalimantan Utara (PARAKU).

Two important figures in the Sarawak Communist movement, Weng Min Chyuan and Bong Kee Chok, came from Chung Hua Middle School.

Instead, the Sarawak Communists supported and propagated the unification of all Borneo territories under British control to form an independent leftist North Kalimantan state.

[2] The Sarawak People's Guerrilla Force was formed on 30 March 1964 at Gunung Asuansang in West Kalimantan with the assistance of the Indonesian Ministry of Foreign Affairs.

The PGRS's leaders included Bong Kee Chok, Yang Chu Chung, and Wen Ming Chyuan.

[2] According to Conboy, the PGRS numbered about 800 and was based in West Kalimantan at Batu Hitam, with a contingent of 120 from the Indonesian intelligence agency and a small cadre trained in China.

[10] According to the former British soldier and writer Will Fowler, these Sarawak Communists received military-style training at Indonesian camps.

To support this ruse, they even formed a separate organisation named the North Kalimantan National Army (TNKU), to link the Sarawak Communists to the original Bruneian rebels.

While the first raids included SCO members, they were often led by regular Indonesian officers or Non-commissioned officers from the Marine commandos (Korps Komando Operasi, KKO), the Army para-commandos (Regimen Para Kommando Angaton Darat, RPKAD), and the Air Force paratroopers ( Pasukan Gerak Tjepat, PGT).

[6] Following the 1965 failed coup, and subsequently, the military takeover in Indonesia, General Suharto launched a purge of Communist elements.

Overnight, the Sarawak Communists in Indonesia lost a safe haven and the Indonesian military would subsequently cooperate with the Malaysians in counter-insurgency operations against their former allies.

[4][6] Despite the loss of an important ally, PARAKU and the PGRS continued fighting against the Malaysian government during the Sarawak Communist Insurgency which lasted until November 1990.

As with the Briggs Plan, the "controlled areas" succeeded in denying the SCO access to food supplies and material from their Chinese and Dayak supporters.

[4] Following the successful Hat Yai peace accords between the Malayan Communist Party and the Malaysian government in 1989, the remaining North Kalimantan Communist Party guerrillas decided to end their insurgency after one of their Chinese contacts Weng Min Chyuan convinced them to negotiate with the Sarawak state government.

By 17 October 1990, a peace agreement formally ending the Sarawak communist insurgency was ratified at Wisma Bapa Malaysia in the state capital Kuching.