The Communist victory in South Vietnam in 1975 abruptly concluded three decades of United States intervention in Vietnam and brought to a close a painful and bitter era for both countries. The war generated considerable social and political discord in the United States, massive disruption in Vietnam, and was enormously costly to both sides. Vietnam endured physical destruction--ravaged battle sites, leveled factories and cities, and untold numbers of military and civilian casualties. The United States escaped physical devastation, but it suffered the loss of 58,000 lives (2,400 unaccounted for) and spent roughly $150 billion in direct expenses to sustain the war. The war also divided and confused American society.

To the Vietnamese communists, the war against the United States simply extended the war for independence initiated against the French. In Hanoi's view, when the United States displaced the French in Indochina, it assumed the French role as a major-power obstacle to Vietnam's eventual reunification.

For the United States, intervention was derived from considerations that largely transcended Vietnam. In the closing months of World War II, the United States had supported the idea of an international trusteeship for all of Indochina. Subsequently, in spite of misgivings in Washington about French intentions to reimpose colonial rule in Indochina, the United States eventually tilted in support of the French war effort in the embattled region. Anticolonial sentiment in the United States after World War II thus failed to outweigh policy priorities in Europe, such as the evolving North Atlantic Treaty Organization (NATO) relationship. The formal creation of NATO and the communist victory in China, both of which occurred in 1949, led the United States to support materially the French war effort in Indochina. The perception that communism was global and monolithic led the administration of President Dwight D. Eisenhower to support the idea of a noncommunist state in southern Vietnam, after the French withdrawal under the Geneva Agreements of 1954. Although this goal arguably ran counter to two key features of the Geneva Agreements (the stipulation that the line separating North and South Vietnam be neither a political nor territorial boundary and the call for reunification elections), it was based on the United States assessment that the Viet minh--which, contrary to the agreements, had left several thousand cadres south of the demarcation line--was already in violation. The first United States advisers arrived in the South within a year after Geneva to help President Ngo Dinh Diem establish a government that would be strong enough to stand up to the communist regime in the North.

Although Washington's advisory role was essentially political, United States policy makers determined that the effort to erect a non-communist state in Vietnam was vital to the security of the region and would be buttressed by military means, if necessary, to inhibit any would-be aggressor. Defending Vietnam's security against aggression from the North and from southern-based communist insurg 2000 gency was a mission Washington initially perceived as requiring only combat support elements and advisers to South Vietnamese military units. The situation, however, rapidly deteriorated, and in 1965, at a time when increasing numbers of North Vietnamese-trained soldiers were moving in South Vietnam, the first increment of United States combat forces was introduced into the South and sustained bombing of military targets in North Vietnam was undertaken. Nearly eight more years of conflict occurred before the intense involvement of the United States ended in 1973.

An "Agreement Ending the War and Restoring Peace in Vietnam" was signed in Paris on January 27, 1973, by Washington, Hanoi, Saigon, and the Provisional Revolutionary Government, representing the Vietnamese communist organization in the South, the Viet Cong (see Glossary--contraction of Viet Nam Cong San). The settlement called for a cease-fire, withdrawal of all United States troops, continuance in place of North Vietnamese troops in the South, and the eventual reunification of the country "through peaceful means." In reality, once United States Forces were disengaged in early 1973 there was no effective way to prevent the North from overwhelming the South's defenses and the settlement proved unenforceably. Following the fragile cease-fire established by the agreement, PAVN units remained in the South Vietnamese countryside, while Army of the Republic of Vietnam ( ARVN--see Glossary) units fought to dislodge them and expand the areas under Saigon's control. As a result, the two sides battled from 1973 to 1975, but the ARVN, having to fight without the close United States air, artillery, logistical, and medevac (medical evacuation) support to which it had become accustomed, acquitted itself badly, losing more and more ground to the community.

The surprisingly swift manner in which the South Vietnamese government finally collapsed in 1975 appeared to confirm that the Paris agreement had accomplished little more than to delay an inevitable defeat for the United States ally, South Vietnam, and that Washington had been impotent to avert this outcome.

Following the war, Hanoi pursued the establishment of diplomatic relations with the United States, initially in order to obtain US$3.3 billion in reconstruction aid, which President Richard M. Nixon had secretly promised after the Paris Agreement was signed in 1973. Under Article 21 of the agreement, the United States had pledged "to contribute to healing the wounds of war and to postwar reconstruction of the DRV . . ." but had specifically avoided using terminology that could be interpreted to mean that reparations were being offered for war damages. Nixon's promise was in the form of a letter, confirming the intent of Article 21 and offering a specific figure. Barely two months after Hanoi's victory in 1975, Premier Pham Van Dong, speaking to the National Assembly, invited the United States to normalize relations with Vietnam and to honor its commitment to provide reconstruction funds. Representatives of two American banks--the Bank of America and First National City Bank--were invited to discuss trade possibilities, and American oil companies were informed that they were welcome to apply for concessions to search for oil in offshore Vietnamese waters.

Washington neglected Dong's call for normal relations, however, because it was predicated on reparations, and the Washington political climate in the wake of the war precluded the pursuit of such an outcome. In response, the administration of President Gerald R. Ford imposed its own precondition for normal relations by announcing that a full accounting of Americans missing in action ( MIAs--see Glossary), including the return of any remains, would be required before normalization could be effected. No concessions were made on either side until President Jimmy Carter softened the United States demand from a full accounting of MIAs to the fullest possible accounting and dispatched a mission to Hanoi in 1977 to initiate normalization discussions.

Although the Vietnamese at first were adamant about United States economic assistance (their first postwar economic plan counted on the amount promised by President Nixon), the condition was dropped in mid-1978 when Hanoi made additional gestures toward normal relations. At that time, Vietnamese Foreign Minister Nguyen Co Thach and the United States government reached an agreement in principle on normalization, but the date was left vague. When Thach urged November 1978, a date that in retrospect is significant because he was due in Moscow to sign the Treaty of Friendship and Cooperation with the Soviet Union, Washington was noncommittal. During this period, United States officials were preoccupied with the question of the Indochinese refugees, and they were in the process of normalizing relations with China. This was an action that could have been jeopardized had Washington concurrently sought a rapprochement with Vietnam, a nation whose relationship with Beijing was growing increasingly strained. Policy makers in Hanoi correctly reasoned that the United States had opted to strengthen its ties with China rather than with Vietnam, and they moved to formalize their ties with the Soviets in response. Their original hope, however, had been to gain both diplomatic recognition from the United States and a friendship treaty with Moscow, as a double guarantee against future Chinese interference.

In the United States, the issue of normalizing relations with Vietnam was complicated by Vietnam's invasion of Cambodia in December 1978, the continuing plight of Vietnamese refugees, and the unresolved MIA issue (see Ethnic Groups and Languages , ch. 2). In 1987, under President Ronald Reagan, the United States continued to enforce the trade embargo imposed on Hanoi in 1975 and barred normal ties as long as Vietnamese troops occupied Cambodia. Any efforts to improve relations remained closely tied to United States willingness to honor its 1973 aid commitment to Vietnam and to Hanoi's failure to account for the whereabouts of more than 2,400 MIAs in Indochina. From the signing of the Paris agreements in 1973 until mid-1978, the Vietnamese had routinely stressed the linkage between the aid and MIA issues. Beginning in mid-1978, however, Hanoi dropped its insistence that the MIA and aid questions be resolved as a precondition for normalization and stopped linking the MIA question to other unresolved matters between the two countries. Vietnamese leaders contrasted their restraint on the MIA issue with its alleged political exploitation by the United States as a condition for normal relations. As additional signs of goodwill, Hanoi permitted the joint United States-Vietnamese excavation of a B-52 crash site in 1985 and returned the remains of a number of United States servicemen between 1985 and 1987. Vietnamese spokesmen also claimed during this period to have a two-year plan to resolve the MIA question but failed to reveal details.

Although Vietnam's Sixth National Party Congress in December 1986 officially paid little attention to relations with the United States, the report of the congress noted that Vietnam was continuing to hold talks with Washington on humanitarian issues and expressed a readiness to improve relations. Although ambivalent in tone, the message was more positive than the 1982 Fifth National Party Congress report, which had attributed the stalemated relationship to Washington's "hostile policy." The improved wording was attributable to the influence of newly appointed Party General Secretary Nguyen Van Linh, who was expected to attach high priority to expanding Vietnam's links with the West.

Within a few months of the Sixth National Party Congress, however, Hanoi began to send conflicting signals to Washington. In mid-1987 the Vietnamese government, having determined that cooperation had gained few69c ew concessions from the United States, reverted to its pre-1978 position linking the aid and MIA issues. The resumption of its hardline stand, however, was brief. A meeting between Vietnamese leaders and President Reagan's special envoy on MIAs, General John W. Vessey, in August 1987 yielded significant gains for both sides. In exchange for greater Vietnamese cooperation on resolving the MIA issue, the United States agreed officially to encourage charitable assistance for Vietnam. Although the agreement fell short of Hanoi's requests for economic aid or war reparations, it marked the first time that the United States had offered anything in return for Vietnamese assistance in accounting for the MIAs and was an important step toward an eventual reconciliation between the two countries.

Data as of December 1987