It was formed with military assistance from Vietnam, which furbished the fledgling armed forces with equipment and training, with the initial task of countering the sustained guerrilla campaign being waged by the Coalition Government of Democratic Kampuchea.
Following the Vietnamese withdrawal in 1989 and the collapse of the Soviet Union, the KPRAF were unable to continue their modest efforts against the CGDK and this in part convinced the Cambodian government to turn to the negotiating table.
They were capable, however, of keeping Cambodia in a permanent state of insecurity; they raised the cost to Hanoi of its large military presence in the country; and, backed by China, they offered a persistent obstacle to the coalescence of an Hanoi-dominated Indochinese federation.
Phnom Penh's denunciations of alleged Thai bellicosity were made with such regularity, however, that it was possible that the KPRAF (and the PRK) stood in some danger of being the victims of their own propaganda concerning Bangkok's aggressive intentions.
In 1987 this threat was not decisive, but it had the potential to become so, if the network of obstacles and minefields emplaced on the Cambodian border proved to be an unexpectedly effective barrier in impeding the flow of Chinese supplies to the Khmer guerrillas.
The security threat posed by such bands was vexatious but minor, and, in the case of Cambodia, it could probably be contained by the provincial units without requiring the intervention of the KPRAF or of Vietnamese main forces.
In their view, the KPRAF was overstretched and understaffed and could neither cope with the sustained guerrilla activity of the CGDK insurgents, nor prevent their infiltration into Cambodia from Thailand, nor patrol the country's extended coastline.
The Constitution also imposes a reciprocal obligation on the people, declaring that it is their "supreme duty and honor" to "build and defend the fatherland", and that all citizens without respect to gender "must serve in the armed forces as prescribed by law".
Its omission provoked speculation about the true locus of authority over the KPRAF and fueled suspicions that the deletion could have been related to the relief, under murky circumstances, of then-chairman and armed forces head Pen Sovan.
The incomplete evidence available in 1987 suggested that functions such as administration, operations, and logistics, normally reserved for general staff sections in some armed forces, were carried out at the Ministry of National Defense level.
In an exhortatory message in early 1987, defense officials proudly noted the existence of PRYUK "structures" in more than 80 percent of the armed forces, and they acknowledged a debt of gratitude to the mass organization for occupying the forefront of a national effort to induce Khmer youth to serve in the KPRAF.
This network of personal and family relationships, always important in Asia, may have fostered a spirit of cooperation rather than competitiveness; moreover, the ubiquity—the perhaps even suffocating presence—of Vietnamese military advisers also may have been sufficient inducement for Khmer personnel to submerge whatever differences existed among them.
Although in the short term this dynamic may have had a purgative effect on the KPRAF, ensuring its ideological purity, it was based on Khmer acquiescence to the continued Vietnamese domination of the PRK and of its armed forces.
In the KPRAF, even among personnel who had chosen not to join the insurgents, it was possible to note a variety of backgrounds; there were ex-Khmer Rouge turncoats, Vietnamese supporters, former royalists, and a younger generation of junior officers and of men without political antecedents.
In addition to the combat role that was part of their internal security responsibilities, the KPRAF also engaged in propaganda activity on behalf of the government, performed various civic action tasks, and participated in economic production.
In the 1980s, its efforts were limited to growing vegetables and raising poultry and livestock for military use, but, in the future, they could include manufacturing commodities and processing raw materials in military-owned factories.
Although not available in written form to Western observers, this doctrine could be inferred from the Constitution, from the circumstances in Cambodia, and from the dynamics of the Vietnamese military establishment which had acted as mentor and as role model for the KPRAF from its inception.
Hanoi, therefore, incessantly evoked the specter of the return of Pol Pot and the Khmer Rouge to induce the Cambodian population to join the KPRAF, and through active personal involvement, to render unflinching support to the PRK.
The relevance of the military doctrine of the large armies of the Soviet Union and of Vietnam to the small, questionably trained and equipped KPRAF remained speculative, however, especially in the counterinsurgency environment of Cambodia.
Vietnamese advisers, focusing on their army's neutralization of insurgent base camps on the Thai border — through large-scale operations supported by indirect fire — in the dry season offensive of 1984 and 1985, may have unwittingly imparted to their Cambodian understudies a predilection for this tactical doctrine.
This objective coincided with the desire of the Vietnamese military authorities to create small local force units in the rural communities along the Thai-Cambodian border, thereby transforming these frontier settlements into combat hamlets that would help to keep the insurgents at bay.
According to instructions relayed to village authorities, former officials and soldiers of the defunct Democratic Kampuchea regime were to be excluded from the militia, and preference was to be given to recruiting former Khmer Rouge victims.
This recruitment policy initially was quite successful, as there was no dearth of Cambodians who had either grievances against the previous regime or the simple desire to protect their homes and their villages from attack by Khmer Rouge guerrillas.
In virtually all cases, militia members were ill- trained and ill-equipped, possessing only Soviet small arms from Vietnam, or hand-me-down United States weapons provided years before to the Khmer Republic.
The establishment of these recruitment councils may have supplanted the earlier press-gang tactics of KPRAF units who, according to refugee accounts, had forcibly rounded up Khmer youths and had inducted them en masse into the armed forces.
In spite of this bureaucratic innovation, draft dodging was reported to be widespread, a situation that was acknowledged obliquely by the government and party media in their unrelenting emphasis on recruitment and on the patriotic duty of serving in the armed forces.
Women were heavily represented in the local forces, according to official disclosures, which stated that in 1987 more than 28,000 were enrolled in militia units and that more than 1,200 had participated in the construction of frontier fortifications on the Thai-Cambodian border.
On the home front, the care of veterans and of military dependents whose sponsors were away on active service was decentralized and entrusted to the solidarity groups (Krom Samaki) and to various party and government committees at the local level.
Battle dress for the soldiers consisted of green or khaki fatigues, with Soviet-style soft boonie hats (such as the Soviet Army wore in Afghanistan), or visored caps with a cloth chin strap.
Senior officers from military region commander to deputy defense minister wore collar tabs with a golden dragon surrounded by an ornate border on a maroon background.