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April 30 marks 50 years since North Vietnamese troops overran the capital of US-aligned South Vietnam, ending what is known locally as the Resistance War against America. Despite strong US-Vietnam reconciliation in recent decades, US President Donald Trump has forbidden American diplomats to observe the anniversary of this transformative moment — but those who survived the chaos that followed will never forget the trauma echoing down through the generations.

Saigon, April 29, 1975. For six weeks, South Vietnamese forces have been falling back in the face of a determined communist offensive. American troops have been gone for two years. The feeble government is in disarray. The people are traumatized by three decades of war and three million deaths.

Bing Crosby’s “White Christmas” begins playing on radios across the capital.

Some Saigonese know it’s a sign: It is time to run.

Lien-Hang T. Nguyen, now a Columbia University history professor, was just five months old, the youngest of nine children. After a failed first escape attempt by helicopter, her family heard about an uncle with access to an oil transport boat. More than 100 refugees crammed aboard the small vessel, where they waited for hours to set sail. Nguyen’s father nearly became separated when he dashed back into the city in a futile attempt to find more relatives.

At nightfall, they finally departed, crossing enemy-controlled territory under cover of darkness before being ordered onto an ammunition barge floating off the coast, bursting with over 1,000 refugees.

“When the sun rose the next day, April 30, we realized Saigon had fallen,” says Nguyen.

They were far from safety. The cable anchoring the barge in place severed, and they came under mortar fire as it drifted helplessly. Somehow, no one was killed in the shelling, but the refugees had no water and scant food, and they were baking under the unrelenting sun of the Mekong Delta.

Later that day, after dark, a US ship arrived to take on refugees, but as hundreds of bodies crowded toward their rescuers, they tipped the barge.

“People fell off, and it was in the middle of the night. Many drowned,” says Nguyen. “My brother watched a child fall in the water and then the father dive in after – they were never seen again.”

Baby Lien-Hang and her siblings all made it onto the second ship that arrived and transited through camps in Guam, Wake Island, and Hawaii, then a series of military bases on the US mainland. Months later, the family finally settled permanently in Pennsylvania. But for those who could not find a way out of Saigon that day, the odyssey is just beginning.

The revolution arrives

Americans often think of April 30, 1975, as the end of the Vietnam War. But for the Vietnamese, “the fall of Saigon signals not just the victory of North Vietnam, but the peak of their revolution,” says Tuong Vu, a political science professor at the University of Oregon.

The Communist Party of Vietnam rapidly began purging society of threats to their regime, including former South Vietnamese officials and soldiers, capitalists, religious clergy, intellectuals, and ethnic Chinese and Khmer. The new government also seized property, collectivized agriculture, and removed hundreds of thousands of urban residents to the countryside for farming.

Erin Phuong Steinhauer, now the head of the Vietnam Society, was five years old when she watched North Vietnamese tanks roll down Nguyen Hue Boulevard and crash through the gates of the presidential palace. Her family were wealthy proprietors of camera shops, and her father was a former soldier for South Vietnam.

Shortly after the fall of Saigon, troops arrived at their home to take him away. He would spend the next four years in a re-education camp – a prison meant to indoctrinate and punish perceived enemies of the state – suffering extreme deprivations, forced labor, and brainwashing. The family’s property was confiscated, and Erin and nine of her siblings went to live with their grandparents.

“Then they arrested my mother, and interrogated her,” says Steinhauer. For a week, she slept in a corrugated panel box. “They kept her there and asked her over and over: ‘Where is your money? Where did you hide everything? What are your plans?’”

She returned deeply traumatized – but the family had a lifeline. Erin’s mother had hidden gold with relatives in the countryside, and over the next four years, the family used it to make risky escapes in small groups to Thailand, Malaysia, and Singapore, where Erin arrived with her mother and sisters in 1979.

“It was a strange feeling when we escaped Vietnam. I remember my dreams before 1975 were in bright color,” says Steinhauer. “Afterward, they were in dull grey overtones.”

Overextension and reform

The Communist Party’s policies strangled economic growth, and Vietnam’s situation was further complicated by China’s split with the USSR. Hanoi sided with Moscow, which had provided advanced weapons and advisors during the war with the US.

Meanwhile, the Khmer Rouge regime in neighboring Cambodia leaned on Beijing for support. Vietnam invaded its neighbor in 1978 to remove Pol Pot’s regime after over a year of border conflicts and failed peace talks, leading to an 11-year-long occupation and a brief punitive war with China in 1979.

“The Soviet Union, with its weak economy, became totally exhausted because of overreach,” says Vu. Straining under the weight of the war in Afghanistan and the arms race with the US, Moscow “was forced to consider economic reform, and in turn, encouraged the Vietnamese to reform as well.”

In 1986, the death of Party Secretary Le Duan allowed new leadership to initiate the Doi Moi reforms, gradually opening Vietnam’s market and sending out political feelers to former enemies.

“After 1986, Vietnam engaged with the global community again, moving away from the Soviet orbit,” says Nguyen. “It is the end of the international marginalization that came about with its war against Cambodia and China.”

Reconciliation with Washington

Repairing relations with the United States remained a slow process, in large part due to an American embargo, and formal diplomatic ties were not fully reestablished until 1995. The relationship strengthened rapidly in the following years, including defense and diplomatic cooperation, but most crucially through trade. Access to US markets helped the Vietnamese economy grow at an astounding pace, with per-capita GDP in 2023 more than 14 times higher than it was in 1995, and total US trade volume over 248 times larger.

That close relationship is part of why many Vietnam observers were shocked when the Trump administration ordered its diplomats in Hanoi to avoid any ceremonies recognizing the 50th anniversary of the fall of Saigon.

“It’s a smack in the face,” says Steinhauer. Though a symbolic gesture, “It invalidates everything we have gone through – not just Vietnamese-Americans, but US veterans, and the people of Vietnam, and the hundreds of diplomats who worked to broker reconciliation over the past 30 years. All of that seems like it is meaningless to this administration.”