Khmer History

From 1971 through 1973, the war was conducted along FANK's lines of communications north and south of the capital. Limited offensives were launched to maintain contact with the rice-growing regions of the northwest and along the Mekong River and Route 5, the Republic's overland connections to South Vietnam. The strategy of the Khmer Rouge was to gradually cut those lines of communication and squeeze Phnom Penh. As a result, FANK forces became fragmented, isolated, and unable to lend one another mutual support.

The main U.S. contribution to the FANK effort came in the form of the bombers and tactical aircraft of the U.S. Air Force. When President Nixon launched the incursion in 1970, American and South Vietnamese troops operated under an umbrella of air cover that was designated Operation Freedom Deal. When those troops were withdrawn, the air operation continued, ostensibly to interdict PAVN/NLF troop movements and logistics. In reality (and unknown to the American Congress and public), they were utilized to provide tactical air support to FANK. As a former U.S. military officer in Phnom Penh reported, "the areas around the Mekong River were so full of bomb craters from B-52 strikes that, by 1973, they looked like the valleys of the moon." 

On 10 March 1972, just before the newly-renamed Constituent Assembly was to approve a revised constitution, Lon Nol announced that he was suspending the deliberations. He then forced Cheng Heng, the chief of state since Sihanouk's deposition, to surrender his authority to him. On the second anniversary of the coup, Lon Nol relinquished his authority as chief of state, but retained his position as prime minister and defense minister.

On 4 June, Lon Nol was elected as the first president of the Khmer Republic in a blatantly rigged election. As per the new constitution (ratified on 30 April), political parties formed in the new nation, quickly becoming a source of political factionalism. General Sutsakhan stated: "the seeds of democratization, which had been thrown into the wind with such goodwill by the Khmer leaders, returned for the Khmer Republic nothing but a poor harvest."

In January 1973, hope sprang into the breasts of the Republic's government, army, and population when the Paris Peace Accord was signed, ending the conflict (for the time being) in South Vietnam and Laos. On 29 January, Lon Nol proclaimed a unilateral cease-fire throughout the nation. All U.S. bombing operations were halted in hopes of securing a chance for peace. It was not to be. The Khmer Rouge simply ignored the proclamation and carried on fighting. By March, heavy casualties, desertions, and low recruitment had forced Lon Nol to introduce conscription and, in April, insurgent forces launched an offensive that pushed into the suburbs of the capital. The U.S. Air Force responded by launching an intense bombing operation that forced the communists back into the countryside after being decimated by the air strikes.

By the last day of Operation Freedom Deal (15 August 1973), 250,000 tons of bombs had been dropped on the Khmer Republic, 82,000 tons of which had been released in the last 45 days of the operation. Since the inception of Operation Menu in 1972, the U.S. Air Force had dropped 539,129 tons of ordnance on Cambodia/Khmer Republic.

As late as 1973–1975, it was a commonly held belief, both within and outside Cambodia, that the war was essentially a foreign conflict that had not fundamentally altered the nature of the Khmer peopl By late 1973, there was a growing awareness among the government and population of the fanaticism, total lack of concern over casualties, and complete rejection of any offer of peace talks which "began to suggest that Khmer Rouge fanaticism and capacity for violence were deeper than anyone had suspected."

Reports of the brutal policies of the organization soon made their way to Phnom Penh and into the population foretelling a violent madness that was about to consume the nation. There were tales of the forced relocations of entire villages, of the summary execution of any who disobeyed or even asked questions, the forbidding of religious practices, of monks who were defrocked or murdered, and where traditional sexual and marital habits were foresworn. War was one thing, the offhand manner in which the Khmer Rouge dealt out death, so contrary to the Khmer character, was quite another. Reports of these atrocities began to surface during the same period in which North Vietnamese troops were withdrawing from the Cambodian battlefields. This was no coincidence. The concentration of the PAVN effort on South Vietnam allowed the Khmer Rouge to apply their doctrine and policies without restraint for the first time.

The Khmer Rouge leadership was almost completely unknown by the public. They were referred to by their fellow countrymen as peap prey – the forest army. Previously, the very existence of the communist party as a component of GRUNK had been hidden. Within the "liberated zones" it was simply referred to as "Angka" – the organization. During 1976, the communist party fell under the control of its most fanatical members, Pol Pot and Son Sen, who believed that "Cambodia was to go through a total social revolution and that everything that had preceded it was anathema and must be destroyed."

Also hidden from scrutiny was the growing antagonism between the Khmer Rouge and their North Vietnamese allies. The radical leadership of the party could never escape the suspicion that Hanoi had designs on building an Indochinese federation with the North Vietnamese as its master. The Khmer Rouge were ideologically tied to the Chinese, while North Vietnam's chief supporters, the Soviet Union, still recognized the Lon Nol government as legitimate. After the signing of the Paris Peace Accords, PAVN cut off the supply of arms to the Khmer Rouge, hoping to force them into a cease-fire. When the Americans were freed by the signing of the accords to turn their air power completely on the Khmer Rouge, this too was blamed on Hanoi. During the year, these suspicions and attitudes led the party leadership to carry out purges within their ranks. Most of the Hanoi-trained members were then executed on the orders of Pol Pot.

As time passed, the need of the Khmer Rouge for the sinecure of Prince Sihanouk lessened. The organization demonstrated to the people of the 'liberated' areas in no uncertain terms that open expressions of support for Sihanouk would result in their liquidation. Although the prince still enjoyed the protection of the Chinese, when he made public appearances overseas to publicize the GRUNK cause, he was treated with almost open contempt by Ministers Ieng Sary and Khieu Samphan. In June, the prince told Italian journalist Oriana Fallaci that when "they [the Khmer Rouge] have sucked me dry, they will spit me out like a cherry stone."

By the end of 1976, Sihanouk loyalists had been purged from all of GRUNK's ministries and all of the prince's supporters within the insurgent ranks were also eliminated. Shortly after Christmas, as the insurgents were gearing up for their final offensive, Sihanouk spoke with the French diplomat Etienne Manac'h. He said that his hopes for a moderate socialism akin to Yugoslavia's must now be totally dismissed. Stalinist Albania he said, would be the model. 

By the time the Khmer Rouge initiated their dry-season offensive to capture the beleaguered Cambodian capital on 1 January 1975, the Republic was in chaos. The economy had been gutted, the transportation network had been reduced to air and water systems, the rice harvest had been reduced by one-quarter, and the supply of freshwater fish (the chief source of protein) had declined drastically. The cost of food was 20 times greater than pre-war levels and unemployment was not even measured anymore. 

Phnom Penh, which had a pre-war population of around 600,000 was overwhelmed by refugees (who continued to flood in from the steadily collapsing defense perimeter), growing to a size of around two million. These helpless and desperate civilians had no jobs and little in the way of food, shelter, or medical care. Their condition (and the government's) only worsened when Khmer Rouge forces gradually gained control of the banks of the Mekong. From the riverbanks, their mines and gunfire steadily reduced the river convoys bringing relief supplies of food, fuel, and ammunition to the slowly starving city (90 percent of the Republic's supplies moved by means of the convoys) from South Vietnam. 

After the river was effectively blocked in early February, the U.S. began an airlift of supplies. This became increasingly risky, however, due to communist rocket and artillery fire, which constantly rained down on the airfields and city.

Desperate, yet determined, units of Republican soldiers, many of whom had run out of ammunition, dug in around the capital and fought until they were overrun as the Khmer Rouge advanced. By the last week of March 1975, approximately 40,000 communist troops had surrounded the capital and began preparing to deliver the coup de grace to about half as many Republican forces.

Lon Nol resigned and left the country on 1 April, hoping that a negotiated settlement might still be possible if he was absent from the political scene. Saukam Khoy became acting president of a government that had less than three weeks to live. Last-minute efforts on the part of the U.S. to arrange a peace agreement involving Sihanouk ended in failure. When a vote in the U.S. Congress for a resumption of American air support failed, panic and a sense of doom pervaded the capital. The situation was best described by General Sak Sutsakhan (now FANK chief of staff):

On 12 April, concluding that all was lost (and without notifying the Khmer government), the U.S. evacuated its embassy personnel by helicopter during Operation Eagle Pull. The 276 evacuees included U.S. Ambassador John Gunther Dean, other American diplomatic personnel, Acting President Saukam Khoy , senior Khmer Republic government officials and their families, and members of the news media. In all, 82 U.S., 159 Cambodian, and 35 third-country nationals were evacuated. Although invited by Ambassador Dean to join the evacuation (and much to the Americans' surprise), Prince Sisowath Sirik Matak, Long Boret, Lon Non (Lon Nol's brother), and most members of Lon Nol's cabinet declined the offer. All of them chose to share the fate of their people. Their names were not published on the death lists and many trusted the Khmer Rouge's assertions that former government officials would not be murdered, but would be welcome in helping rebuild a new Cambodia.

Later, they were all executed by the Khmer Rouge.

After the Americans (and Saukam Khoy) had departed, a seven-member Supreme Committee, headed by General Sak Sutsakhan, assumed authority over the collapsing Republic. By 15 April, the last solid defenses of the city were overcome by the communists. In the early morning hours of 17 April, the committee decided to move the seat of government to Oddar Meanchay Province in the northwest. Around 10:00, the voice of General Mey Si Chan of the FANK general staff broadcast on the radio, ordering all FANK forces to cease firing, since "negotiations were in progress" for the surrender of Phnom Penh. The war was over but the terrible dreams of the Khmer Rouge were about to come to fruition in the newly-proclaimed Democratic Kampuchea. Khmer Rouge troops immediately began to forcibly empty the capital city, driving the population into the countryside and killing thousands in the process. The Year Zero had begun.