The American War (1955-1975)
The US had been bankrolling France’s war in Vietnam since 1950. When the French left, Washington switched to supporting Ngo Dinh Diem’s shaky regime in the South. Officially, it was about stopping Communism from spreading across Southeast Asia — the Domino Theory — but access to trade, resources, and influence played a big part too.
By 1962, 12,000 American “advisers” were on the ground. But Diem’s government was corrupt and deeply unpopular, especially in rural areas where peasants were forced into Strategic Hamlets — walled villages meant to cut off Viet Cong access. The plan backfired badly. It alienated villagers and boosted support for the resistance.
Then came Ap Bac (January 1963), where a small Viet Cong force crushed a much larger ARVN unit. Things got worse in May, when Buddhist monks were attacked during peaceful protests. That summer, Thich Quang Duc famously set himself on fire in downtown Saigon. By November, the US had backed a coup. Diem and his brother were killed the next day.
Escalation and the Gulf of Tonkin (1964)
South Vietnam spiralled into instability. The Viet Cong (VC) were gaining ground. Hanoi stepped up support and sent regular NVA troops down the Ho Chi Minh Trail. In Washington, the pressure to act grew.
Then came the Gulf of Tonkin incident. On August 2, 1964, the USS Maddox reported being attacked by North Vietnamese boats. A second attack was later claimed — but likely never happened. Still, the Tonkin Gulf Resolution passed, giving President Johnson a blank check to wage war.
Operation Rolling Thunder (1965-1968)
After an NVA raid on Pleiku, the US launched Rolling Thunder, a relentless bombing campaign targeting North Vietnam. Over three years, US planes flew 350,000 sorties, dropping more than twice the tonnage of bombs used in all of WWII. It didn’t work. North Vietnam simply repaired roads and bridges and kept the supply lines running.
The first US ground troops landed at Da Nang in March 1965. By the end of the year, there were 200,000 Americans in Vietnam. At the peak, over 540,000 US troops were in-country, joined by Australians, South Koreans, Thais, and others. But this wasn’t a war of tanks and front lines. It was a jungle conflict fought against guerrillas who disappeared into the trees — or the nearest village.
Fighting a shadow war
The US found itself caught in a moral and tactical nightmare. Bombing hardened the North’s resolve. In the South, US troops couldn’t tell friend from enemy. Villagers were caught between both sides. The Viet Cong imposed harsh control in areas they dominated. US and ARVN forces often responded with brutality. It was impossible to stay neutral — and dangerous to be wrong.
In many families, brothers fought on opposite sides. Kids were conscripted by whoever got to them first. Trust vanished. Paranoia thrived.
The Tet Offensive (1968)
On January 31, 1968, during the lunar new year (Tet) holiday, 70,000 Communist troops attacked over 100 towns and cities in the South. Saigon’s US Embassy compound was breached. The city of Hue fell and held for weeks.
Militarily, the offensive failed. But politically, it changed everything. The US public had been told the war was under control. Tet proved otherwise. Confidence collapsed.
By March, Johnson announced he wouldn’t seek re-election. Rolling Thunder was wound down. Peace talks began in Paris. But the fighting raged on.
Nixon, Cambodia, and vietnamization (1969-1973)
Richard Nixon took office in 1969 promising “peace with honor.” His plan? Vietnamization — withdraw US troops while arming and training ARVN forces. US numbers dropped from 540,000 to 280,000 by 1970.
But Nixon widened the war. In 1969, he secretly bombed Communist camps in Cambodia (Operation Menu). In 1970, US and ARVN troops invaded Cambodia outright. At home, protests erupted.
Ho Chi Minh died on September 2, 1969. Peace talks stalled over the future of South Vietnam. Nixon's “Madman Theory” floated the threat of nuclear escalation. Neither side blinked.
In 1972, the North launched the Easter Offensive. Nixon responded with Operation Linebacker, restarting bombing in the North. Behind the scenes, talks resumed.
In January 1973, after Nixon’s infamous Christmas Bombing, the Paris Peace Accords were signed. The US agreed to withdraw all troops. Hanoi and Saigon exchanged POWs. Kissinger and Le Duc Tho shared the Nobel Peace Prize — though only Kissinger accepted it.
The fall of the South (1973-1975)
The US was gone. But the war wasn’t over.
ARVN was large — over a million men — but riddled with corruption. After a strong counteroffensive in 1973, things unraveled fast. By 1974, inflation, unemployment, and mass desertions left South Vietnam teetering.
In early 1975, the North launched the Ho Chi Minh Campaign. It was swift and brutal. Towns fell one by one: Buon Ma Thuot, Hue, Da Nang, Xuan Loc. On April 21, President Thieu fled to Taiwan.
On April 30, 1975, NVA tanks rolled into Saigon. The US evacuated its embassy staff and allies in Operation Frequent Wind, the largest helicopter evacuation in history. General “Big” Minh, who had been in office for just two days, surrendered unconditionally.
The American War was over. Vietnam was united. But the cost was staggering:
- Over 58,000 Americans killed.
- Roughly 2 million Vietnamese civilians and soldiers dead.
- A generation uprooted. A country in ruins.