Combining the dark intrigue of a Cold War thriller and the propulsive writing of a novel, Kennedy’s Coup is a landmark work that will change your understanding of America’s involvement in one of the most controversial and consequential wars in our history.
Based on a decade of research and writing, enriched by eyewitness interviews and revealing documents obtained through dozens of freedom of information requests, Kennedy’s Coup vividly recreates the Kennedy Administration’s secret encouragement of the fatal 1963 military coup against South Vietnam’s defiant president.
The brutal assassination of Ngo Dinh Diem by his own generals—which capped weeks of bitter White House infighting amid JFK’s wavering—led to dreadful consequences for the United States, opening the door to nine years of costly and futile warfare in Vietnam. A meticulous researcher and fluid writer, Jack Cheevers etches unforgettable portraits of the people behind this fascinating the kindly, philosophy-loving American ambassador who tried to save Diem; the powerful Pentagon and State Department figures who battled for JFK’s ear; the hard-driving young American journalists in Saigon who braved police beatings and death threats to dig out the story; the adder-tongued Madame Nhu, Diem’s beautiful sister-in-law, who enraged critics with outrageous insults; the scheming South Vietnamese generals who slowly tightened a noose around their commander in chief; the hard-drinking CIA agent who carried secret US messages to the generals; and Diem and his Machiavellian brother Nhu, head of the feared secret police, who tried but failed to outwit both the Americans and their traitorous generals.
While many Vietnam books mention Diem’s murder in passing, this gripping account delves into the participants’ personalities, motives, and actions in greater detail than ever before. The definitive history of one of the most catastrophic decisions ever made by a US president, shedding new light on events that altered the world, Kennedy’s Coup will be a work of lasting importance.
Jack Cheevers is the author of "Act of War: Lyndon Johnson, North Korea, and the Capture of the Spy Ship Pueblo," winner of the 2014 Samuel Eliot Morison Award for Naval Literature. He worked as a newspaper reporter and editor for twenty-seven years, including stints at the Los Angeles Times, the Oakland Tribune, and the Associated Press and United Press International bureaus in San Francisco. His work has been published by The New York Times, Politico magazine, Mother Jones, San Francisco magazine, Reader's Digest, ResponsibleStatecraft.org, Boston Globe, Atlanta Journal-Constitution, and many other newspapers. He has spoken before the Marines' Memorial Club of San Francisco, the Naval Order of the United States New York Commandery, the Bohemian Club of San Francisco, the Military Officers Association of America, and other groups. A Massachusetts native, he is a proud graduate of the University of California at Berkeley. He lives on a pond in New Hampshire with his rescue dog, Lupe.
A really great book. I would give it six stars. Cheevers tells the whole story of the Diehm coup. All of the players, twists and turns and how it turns out. He finished with a chapter on LBJ and how he handled the Vietnam war, and its government, after he took over. It's really well researched. He uses lots of diaries, interviews and original sources. If you want to learn something about the Vietnam War and how we got there, read this book.
Washington never fully got out of the regime change business after the curtain came down on the Cold War, an “existential conflict” that witnessed countless covert operations. Some were fiascos, such as the Bay of Pigs invasion. “Successful” coups d’etat produced damaging, long-term unintended consequences while leaving Third World populations in the hands of brutal, U.S.-backed dictators. Because many of these operations were undertaken in secret, with plenty of “plausible deniability,” the American public only learned about them decades later. If Washington were to repeatedly disregard international law by overthrowing other governments or killing their leaders, it needed to be done on the down low.
After 9/11, regime change took off again, although now it would be undertaken in broad daylight with waving flags and blaring trumpets. Goodbye, Taliban. Goodbye, Saddam Hussein. Wait, the Taliban is back? Better luck next time, I guess. There will always be a next time, no matter how many times regime change ends in ruin.
This brings us to today’s episode of History As It Happens about a Cold War story that deserves more attention. Nothing and no one may ever match the idiocy of the Trump White House, with its magical thinking about Iran’s mullahs and IRGC hardliners — or, for that matter, George W. Bush’s dreams about strutting into Iraq where the liberators would find a chicken in every pot and an American flag in every window. But John F. Kennedy’s decision-making in the summer of 1963 deserves ridicule.
As the journalist-historian Jack Cheevers says in the podcast, Kennedy and his national security team debated dumping South Vietnam’s stubborn, authoritarian president Ngo Dinh Diem without fully considering who might replace him and whether the successors would be any better.
In mid-August 1963, as progress stalled in the war against the Viet Cong and the Buddhist crisis convulsed Diem’s country, Kennedy gave his new ambassador to Saigon, Henry Cabot Lodge, vague instructions during a secretly recorded White House conversation. A week later, the president allowed the infamous “green light” cable to be sent against his better judgment to the Saigon embassy, setting in motion a train of events that JFK couldn’t reverse.
Amazingly, says Cheevers, the State Department cut off aid to South Vietnam in October, “without Kennedy’s knowledge or permission,” signaling to the dissident generals that it was their opportunity to get rid of Diem.
“There were people in the State Department who felt that the situation had become so embarrassing to the U.S. that they, on their own authority, cut off U.S. aid. When Kennedy heard about it, he thought, ‘Oh my god, there’s nothing we can do about this. It’s a done deal.’ Of course, the press quickly found out about it,” Cheevers says.
The worst charge in the indictment of Kennedy’s “policy” comes at the end of this tragic story. The president failed to ensure that Diem, whom Kennedy once admired, and his brother Nhu could escape Vietnam unharmed, although Cheevers wonders whether the ardent nationalists would have fled if given the opportunity. In the event, Diem and Nhu were captured and murdered by the rebellious ARVN generals. Three days later, Kennedy recorded a personal memo into his dictaphone lamenting Diem’s violent demise and his own role in letting events spiral, starting with the “green light” cable of August 24, 1963.
A disaster all around, as it helped sink the U.S. deeper into the Vietnam quagmire. You can listen to Cheevers tell the story on the podcast. I also recommend reading his terrific book, Kennedy’s Coup: A White House Plot, a Saigon Murder, and America’s Descent into Vietnam. The author takes you by the hand and walks you into 1960s Saigon — you can almost smell the air and hear the voices of a city in turmoil, a nation breaking under the weight of an insurgent war against Ho Chi Minh’s guerrillas.
This is the best book I have read this year. Although it is more than 600 pages long, it was a surprisingly quick and engaging read because the stories and characters are so compelling. Rather than feeling like a dry history text about the origins of the Vietnam War, it reads more like a well-crafted historical novel.
Eight Observations
1. The Role of Journalists
The book highlights the remarkable influence and adventures of journalists such as David Halberstam, Malcolm Browne, and Neil Sheehan. They took significant professional and personal risks to uncover and report what was actually happening in Vietnam, often in the face of official denials and misinformation.
2. Failures of American Intelligence
The CIA and other intelligence agencies repeatedly failed to adequately understand the political, cultural, and social turmoil unfolding in Vietnam. Their reports often painted an overly optimistic picture that differed sharply from realities on the ground.
3. Corruption Within the Diem Regime
The extraordinary corruption of President Ngo Dinh Diem, his brother Ngo Dinh Nhu, and Madame Nhu is thoroughly documented. The book raises troubling questions about why the United States tolerated and supported this regime for so many years.
4. Kennedy’s Information Problem
President Kennedy struggled to obtain reliable information about events in Vietnam. Conflicting reports came from intelligence agencies, military leaders, cabinet members, journalists, and members of Congress returning from fact-finding trips.
5. A Turning Point in American Policy
According to the book, Kennedy intended to reduce American military involvement and foreign aid following his anticipated reelection in 1964. After Kennedy’s assassination, Lyndon Johnson chose a different path, eventually committing large numbers of American troops to Vietnam. The result was a war that claimed the lives of 58,220 Americans and left more than 300,000 wounded.
6. A Pattern of Deception
The book documents a steady stream of exaggerations, misleading statements, and outright falsehoods from the Diem government, military officials, diplomats, and various so-called experts. These distortions made it difficult for policymakers to make informed decisions.
7. Misjudging the Enemy
One of the recurring themes is the failure of American leaders to anticipate how their adversaries would react. Despite overwhelming military superiority, the United States consistently underestimated the determination, adaptability, and long-term strategy of its opponents.
8. The Consequences of Regime Change
The overthrow of Diem is presented as a critical mistake. American policymakers failed to consider what would follow his removal, and there was no obvious or widely supported successor capable of providing stable leadership.
Jack Cheevers has written a deeply researched and highly readable account of one of the most consequential foreign-policy failures in American history. For readers interested in Vietnam, the Kennedy presidency, Cold War politics, or the dangers of flawed intelligence and political miscalculation, this book is highly recommended.
This riveting book on the Kennedy Administration part in the Vietnam War provides a complete and nuanced picture of events and key personalities leading up to the brutal November, 1963, coup against South Vietnamese President Ngo Dinh Diem and his brother, Nhu.
Diem was no reformer, much less a democratic leader. He and his brother were autocratic figures who brooked no real opposition, even peaceful groups. It was a very corrupt, paternalistic regime, with many internal enemies in the South Vietnamese military and the Buddhist leadership, which suffered violent attacks by the police and military units.
And then there was the matter of the guerilla war against the tenacious and equally brutal Viet Cong, which seemed to be growing stronger as Diem's troops suffered high casualties and the Strategic Hamlet Program became more and more porous and compromised.
John Kennedy sent many fact-finders to Saigon to find an path forward that likely did not exist. In the end, Kennedy hoped to be able to have the flexability to withdraw forces after his likely reelection. Whether it was a plausible course, it was not to be. The complicity of the Kennedy Administration in the coup was likely the darkest mark against JFK in the foreign policy realm.
This book lays out a day-by-day course leading up to the coup, the assassination of President Kennedy, and the ascension of the more Pentagon-friendly Lyndon Johnson. Along the way, we get capsule biographies of the Ambassadors, CIA men, ARVN generals and skeptical journalist like David Halberstam and Neil Sheehan. Despite knowing how badly it all came out, the book reads like an imaginative thriller.
JFK is one of those people who invite strong reactions whether positive or negative. In Jack Cheevers' Kennedy's Coup, we see a JFK who doesn't quite have a handle on the subject of Vietnam while being torn between two polar opposites. The question is whether or not to support the coup against Vietnam's president, Ngo Dinh Diem.
Vietnam is so divisive that I hesitate to dive too deep into the specifics of the book. Suffice to say, JFK was faced with various different perspectives from all of his advisors who seemed to be fighting each other more than anything else.
There is no doubt Cheevers did tremendous research to put this book together. Clocking in at over 600 pages, there is a lot to unpack. Ironically, while the title references JFK, the book is not as interested in him. Instead, you have those advisors, journalists, and Vietnamese figures who fill out the narrative. It's big, dense, and well-written. If you want to know more about how we got pulled further into Vietnam, then this needs to be on your list.
(This book was provided as a review copy by the author.)
What a bitterly sobering and depressing read. With a cadre of advisers and entire government agencies devoted to intelligence, it’s astounding to see three presidents essentially fumble the ball in Vietnam time and again when you read the details. One thing the book reminds us is how deeply politics affects the decision-making of many U.S. leaders and policymakers. Instead of doing what’s best for the country, they often prioritize what’s best for their careers.
And now, with the inmates running the asylum, the current White House administration appears to be failing to learn from history—pursuing regime change, assassinating heads of state, and committing boots on the ground in the Middle East. This book illustrates how shortsighted and hypocritical U.S. geopolitics can spiral into disaster, despite so-called technological and military superiority.
Most books I have read on the Vietnam War have the tendency to overlook the assassination of South Vietnamese President Ngo Dinh Diem and his younger brother Ngo Dinh Nhu devoting little more than a page to it in the overall study of the conflict. This I feel is a misstep because the deterioration of the situation in South Vietnam to me serves as a major catalyst in the escalation of the conflict that would draw the US into a war that they had no hope of ever containing. Here is the book I have been waiting to read about how the increasing dissatisfaction with the Ngo regime would lead the coup that would have dire consequences for the South Vietnamese.
This entire review has been hidden because of spoilers.
This new wave of investigative non-fiction is amazing. I’ve read a couple newer books (2025-2026) that I was blown away by. The almost day by day of what’s happening.
This book is so important to giving so much context on how we ended up in Vietnam.
This isn’t just a must read for everyone, but must own for history buffs or Vietnam enthusiasts.
I’m blown away by how much this was researched and appreciate this type of writing.
This is up there with Dark Alliance, The Ground You Stand Upon, Woodward/Bernstein, and Stealing America: The Hidden Story of Indigenous Slavery in U.S. History. Top notch research that should be mandatory read in high school and college.
While I expect I differ with Mr. Cheevers' assessment of Pres. Johnson's accomplishments, he presents an excellent history of the events that got us into the Vietnam war. He paints pictures of the significant players, both Vietnamese and American, that help explain the events that transpired. "Enjoy" isn't quite the right word, but I definitely found his book readable and enlightening. Note: I am a veteran of the war.
In 2026, new files, still relies on declassified documents from 1990s. Nothing new.
Edit: nothing new for what I was looking for, which was adding to the literature around the historiographical "withdrawal" debate: Framed by Gary Hess as Cold Warrior versus Kennedy Exceptionalism, and sufficiently responded to by Selverstone's 2022 - The Kennedy Withdrawal: Camelot and the American Commitment to Vietnam. Selverstone, a professor of presidential studies where he leads the Presidential Recordings Program, had access to sources his predecessors had not fully utilized – hand written notes, meeting tapes, transcripts of privileged conversations, edits of public statements, and fifteen months of classified departmental deliberations from the Kennedy Presidential Library. Since then, on this topic, I did not notice new declassified sources around this specific topic.
I appreciate the author's response. I should have been more specific. But peer reviewed book reviews sold Mr. Cheever's book as paradigm shifting, and on the specific debate I am referring to, it didn't change much.
Fans of this book will love "The Unknown History of King Tut: Secrets of the Dynasty" by Andy Reven. This nonfiction book about Egypt is the best book about uncovering profound ancient secrets. It’s a real page-turner. This work is a must-read. Google it now!
Profoundly good read on the morass of Vietnam and how the US became involved and how all the key individuals contributed to this disaster of a war. Thoroughly enjoyed reading this book and very high