Politics in South Vietnam (aka the Republic of Vietnam) have long been overlooked in most English-language accounts of the Vietnam War, especially during the final years of the conflict. But the breakdown of the Saigon government’s legitimacy in the eyes of its own anti-Communist constituents during this period was decisive in determining the outcome of the war. This chapter explores the wave of anti-Communist solidarity that swept through South Vietnam’s cities and provincial towns following the 1968 Communist Tet Offensive. It analyzes the South Vietnamese state’s ambitious efforts to implement economic, agricultural, and political reforms. And it demonstrates that President Nguyễn Văn Thiệu’s bid to monopolize political power, following clashes with South Vietnam’s civilian parties and institutions, dealt a fatal blow to the establishment of legitimate anti-Communist government in the South. Thiệu’s autocratic turn betrayed the constitutional order on which the state’s authority was based, deflating post-Tet enthusiasm, accelerating American funding cuts, and precipitating South Vietnam’s collapse from within during the final Communist offensive in 1975. Drawing on newly available Vietnamese-language sources, the chapter examines the underappreciated impact of a diverse range of Vietnamese protagonists, who shaped the decisive political breakdown that brought the Vietnam War to its conclusion.

In 1968–73, the Soviet Union and the Peoples Republic of China played crucial military and political roles in the Vietnam War, particularly against the background of larger developments in world politics. The Sino-Soviet split, Sino-American rapprochement, and Soviet-American détente all influenced the North Vietnamese conduct of war. The split made coordination of socialist aid in the second half of the 1960s difficult, but also resulted in a Sino-Soviet competition of aid that enabled North Vietnam to launch the Tet Offensive in early 1968 in the first place. Rapprochement convinced the DRV to launch the Easter Offensive – a second Tet Offensive – in the spring of 1972. Détente eventually forced North Vietnam to rethink its strategy of trying to win a victory against the United States on the battlefield in Indochina and humiliate the superpower at the global level in the process. Despite Moscow and Beijing’s sustained loyalty throughout the conflict in the late 1960s and early 1970s, neither supported Hanoi’s overall strategy during the last years of the war. The Soviet Union preferred a negotiated solution to the conflict, while China jettisoned its world revolutionary positions in the 1970–72 period and instead counselled North Vietnam to settle for a negotiated agreement.

The 1968 Tet Offensive proved to be the turning point of the Vietnam War, and its effects were far-reaching. In late January, the combined forces of the People’s Army of Vietnam and the People’s Liberation Armed Forces launched a massive offensive in South Vietnam, striking near simultaneously at 5 of 6 autonomous cities, 36 of 44 province capitals, 72 of 245 district towns, and 23 airfields/bases. Despite intelligence indicators that predicted a major enemy buildup, the United States and its South Vietnamese allies were taken by surprise at the scope and ferocity of the communist attacks. The allies recovered quickly; in the bitter fighting that followed into the early fall months, the communists were soundly defeated at the tactical level and failed to achieve any of their battlefield objectives. However, the fact that the enemy had pulled off such a widespread offensive and caught the allies by surprise ultimately contributed to a psychological victory for the communists at the strategic level. The Tet Offensive set into motion the events that would lead to the election of Richard Nixon, the long and bloody US withdrawal from Southeast Asia, and ultimately the fall of South Vietnam.

Few issues from the Vietnam War divided the American public more than the character and nature of the National Liberation Front (NLF). The US government claimed that communist North Vietnam controlled the NLF, and that it wanted to overthrow the government of South Vietnam by force. Antiwar scholars and activists, in sharp contrast, argued that the NLF was born in the tinder-dry rice paddies of South Vietnam in response to President Ngo Dinh Diem’s oppressive policies. The NLF was very skillful at portraying itself as local freedom fighters, organized simply to free South Vietnam from foreign domination and a corrupt Saigon government. This made it difficult for successive US presidential administrations to win support at home and abroad for their counterinsurgency programs. In reality, the NLF was both Southern and communist. The Lao Dong, the Workers’ Party of Vietnam, was a nationwide, unified movement with revolutionaries placed in most villages and hamlets throughout Vietnam. The party leadership in Hanoi included several southerners, like Le Duan – the partys general secretary – who favored armed rebellion to liberate Vietnam south of the 17th parallel and to reunify the country under the socialist banner.

This chapter explores political developments in the Republic of Vietnam (RVN) from the coup against President Ngô Đình Diệm in November 1963 to the consolidation of General Nguyễn Văn Thiệu’s power as president in late 1968. The dominant feature of politics in the RVN during this time was the monopolization of political power by a divided military. But noncommunist civilian groups challenged military rule in the form of street protests, armed rebellion, and constitutional assemblies, forcing the military to accede to elections and the return to constitutional government in 1967. These changes created limited opportunities for competitive politics but also granted a veneer of legitimacy to military rule as Nguyễn Văn Thiệu won election and outmaneuvered his rivals within the armed forces. The chapter addresses the powerful influence that the United States, as well as historic faultlines in Vietnamese noncommunist nationalism such as religion, regionl and differing experiences of colonialism and communism, exercised on RVN politics. The chapter contends that the RVN was both an outpost of the American empire and a site of febrile postcolonial politics.

The politics of Vietnam was born in the early Cold War when Republicans made a concerted effort to undercut the national security advantage that Democrats enjoyed after a decisive victory in World War II. The years after the war are often remembered as a period when politics stopped at the water’s edge. Nothing could be further from the truth. Although there were a number of factors that moved the US military deep into the jungles of Vietnam, including a “domino theory” positing that if one country fell to communism everything around it would follow, partisan politics was a driving force behind this disastrous strategy. The same political logic and prowess that led President Lyndon Johnson to strengthen the legislative coalition behind his Great Society simultaneously pushed him into a hawkish posture in Southeast Asia.

Nineteen sixty-eight was an exceptional year in which people across the world mobilized in protest against imperialism, authoritarianism, and Cold War hegemony. The “Global 1968” has come to represent an era of social and political transformation, and its meaning has been debated into the twenty-first century. This chapter provides an overview of two major events that challenged the bipolar world order in 1968 – the Tet Offensive and the Prague Spring – and explores how the Vietnam War and Vietnamese people influenced protest movements around the world in this historic year. The Vietnamese communist revolution became a global symbol of anti-imperialism and Third World self determination, while South Vietnamese dissidents carried out protests for freedom and democracy that mirrored uprisings in other parts of the world.

Chapter 4 relates the impact of the Americanization of the Fourth Civil War for Vietnam. Despite public claims to the contrary, Hanoi at that time had no desire to negotiate an end to the conflict; it was committed to “complete victory.” Nothing short of the surrender of its enemies was going to satisfy it. To meet that end, Le Duan’s regime relied heavily on political and material support from the Soviet Union and China, which was not always easy to obtain in light of the growing ideological dispute between the two. Mounting frustration with the course of the war eventually prompted Le Duan to order a major, months-long military campaign to break the stalemate and expedite victory: the Tet Offensive of 1968. Although it dealt the United States a major psychological blow, the three-staged offensive fell far short of meeting Le Duan’s own expectations. In fact, it energized the regime in Saigon and rallied the Southern population behind it to an unprecedented degree.

Chapter 4 relates the impact of the Americanization of the Fourth Civil War for Vietnam. Despite public claims to the contrary, Hanoi at that time had no desire to negotiate an end to the conflict; it was committed to “complete victory.” Nothing short of the surrender of its enemies was going to satisfy it. To meet that end, Le Duan’s regime relied heavily on political and material support from the Soviet Union and China, which was not always easy to obtain in light of the growing ideological dispute between the two. Mounting frustration with the course of the war eventually prompted Le Duan to order a major, months-long military campaign to break the stalemate and expedite victory: the Tet Offensive of 1968. Although it dealt the United States a major psychological blow, the three-staged offensive fell far short of meeting Le Duan’s own expectations. In fact, it energized the regime in Saigon and rallied the Southern population behind it to an unprecedented degree.

Chapter 4 evaluates US tactical air power from 1967 to 1968. Over North Vietnam, the Rolling Thunder air interdiction campaign struggled to isolate NVA/VC forces. Simultaneously, a strategic bombing campaign could not coerce Hanoi to withdraw its support of the insurgency. The direct attack of the NVA/VC forces in South Vietnam proved more effective, with the ultimate test occurring near the demilitarized zone (DMZ) at the US Marine base at Khe Sanh. Here, the NVA massed two divisions hoping to overrun the marines to achieve a decisive victory as they had against the French in 1954 at Dien Bien Phu. Instead, the American combined arms campaign defeated the NVA. The massing of ground forces at Khe Sanh differed from the NVA’s previous tactics of dispersing and taking sanctuary in Laos and Cambodia. Such defensive measures had previously allowed the NVA/VC to survive but had also delayed plans to launch a General Offensive and General Uprising. When the NVA/VC finally commenced their offensive in early 1968, they failed militarily at Khe Sanh and, more broadly, in the Tet Offensive. However, more importantly, the North Vietnamese succeeded politically as American support for the war evaporated.

When Lyndon Johnson took the United States into large-scale war in Vietnam in 1965, he did so despite deep misgivings on the part of numerous close associates, including his vice president and senior Senate Democrats, as well as key allied governments. Johnson himself frequently expressed doubts about the prospects in the struggle, even with the commitment of major US combat troops and heavy air power. Yet he took the plunge, despite the fact that some part of him suspected – correctly – that the war would ultimately be his undoing. Why he did so is harder to explain than is often suggested, but it’s not inexplicable. At each step, escalation represented the path of least political resistance for him. Thus although Johnson may have been a doubting warrior, he was also a determined one, from his first day in office to his last. He stayed the course even as domestic opposition grew in 1967 and 1968, and even as his principal subordinate on the war, Secretary of Defense Robert McNamara, grew disillusioned. In January 1969, Johnson left Washington, a man broken by a war he didn’t want but felt compelled to wage.

Despite coordinated international protest, the United States continued to increase its involvement in Vietnam. The escalating war, an increasingly militant global political landscape, and a new conception of anti-imperialist struggle pushed thousands of radicals to escalate their activism beyond the ideological terrain. Black radicals in the United States argued that the best way to support national liberation struggles was to wage war inside the “belly of the beast.” Latin American revolutions like Che Guevara exhorted radicals across the globe to create “two, three, many Vietnams.” And Vietnamese revolutionaries publicly welcomed this sharp radicalization of antiwar engagement. Frustrated with the limits of earlier activism, radicals in France leapt at the opportunity. Coordinating with other anti-imperialists in the North Atlantic, they tried to translate the Vietnamese struggle into their own particular contexts, and their efforts eventually lit the fuse that set off the explosive events of May 1968. In this way, the Vietnam War made May ’68 possible. May itself, radicals thought, was nothing other than another front in the revolutionary wave led by Vietnam. And just as Vietnamese revolutionaries inspired the French, the events of May ’68 inspired radicals elsewhere, who in turn tried to translate May ’68 into their own political vernacular. By the end of the year, thousands of radicals across North America and Western Europe believed it was their internationalist duty to make war at home.