If you’ve picked up Jack Carr’s Cry Havoc, you know that the war in Vietnam wasn’t just fought by American draftees in rice paddies. It was fought in the shadows, across the fence in Laos and Cambodia, by men who didn’t exist, fighting a war that never happened.

Read my review of Cry Havoc: Mud, Blood, and MACV-SOG in 1968: Jack Carr’s Masterclass in Historical Fiction

In the opening chapters, we are dropped into the humid, claustrophobic terror of the Laotian jungle. We see Navy SEAL Tom Reece and Army Special Forces legend Frank Quinn operating deep in enemy territory. But they aren’t relying on satellite imagery to survive. They are relying on the eyes, ears, and instincts of men named Mang, Tuan, and Amiuh.

To the casual reader, these indigenous teammates might seem like supporting characters. But to anyone who knows the history of the Secret War, they are the protagonists.

The partnership between the US Special Forces (Green Berets) and the Montagnards, the indigenous hill tribes of Vietnam’s Central Highlands, is perhaps the most successful, effective, and ultimately heartbreaking unconventional warfare alliance in American history.

The Geography of Exclusion

To understand why a Navy SEAL and a tribesman from the Central Highlands would die for each other, you have to understand who the Montagnard were.

“Montagnard” is a French colonial umbrella term meaning “mountaineer.” The people themselves used the term Dega or Degar (“Sons of the Mountains”). They were not a monolith; they were a diverse collection of roughly 30 distinct ethnic groups inhabiting the Annamite Cordillera, the spinal column of mountains running through Indochina.

Historically, the lowland ethnic Vietnamese (Kinh) viewed the Montagnards with intense prejudice, referring to them as moi (savages). They were pushed to the margins, their lands encroached upon, their culture dismissed. This isolation created a fierce independence and a warrior culture that the US Special Forces tapped into.

In Cry Havoc, the specific tribal identities matter. SOG didn’t just recruit indigenous troops, they recruited specific tribes for specific terrains:

• The Jarai: The largest group, known for a society centered around mystical spiritual leaders like the “King of Fire” and “King of Water.” They dominated the Pleiku area and the Cambodian border.
• The Rhade: Centered around Ban Me Thuot, they were politically sophisticated and practiced a matrilineal society where women held significant influence.
• The Sedang: Often described by SOG handlers as the most aggressive and fearless fighters, utilized heavily for operations in the lethal “tri-border” region.
• The Bru: Living near the DMZ, they bore the brunt of the conventional NVA artillery and were fiercely loyal to the bases at Khe Sanh.

In the book, the character of Amiuh represents the heart of the US-Montagnard alliance. When Amiuh touches his rosary beads, Carr is referencing a specific historical nuance: the intersection of French missionary work and tribal animism that defined the spiritual life of many Montagnards in the region. Amiuh’s backstory, a Catholic orphan raised in the violence of a burned village, mirrors the history of the real tribes who were caught between the NVA hammer and the anvil of the Saigon government.

The Sociology of the Green Beret

Why did the Montagnards trust the Americans when they trusted no one else?

The answer lies in a unique anthropological approach taken by the Green Berets. Unlike the regular Army, or the French before them, the Special Forces soldiers lived in the Montagnard longhouses. They ate their food, drank their rice wine (nam pe), and learned their languages.

As noted in historical analyses of the region, the Americans offered a “holy trinity” of support that the Saigon government denied the tribes: Respect, Weapons, and Medicine.

In Cry Havoc, we see this dynamic play out beautifully. Quinn and Reece don’t talk down to their indigenous team; they trust them with their lives. The moment Reece gives Amiuh his Seiko watch isn’t just a plot point; it reflects a real tradition within SOG. These teams forged a brotherhood that transcended race and nationality, bonded by the shared reality that they were surrounded by enemies on all sides.

The Sensate Regime

Carr writes that “the jungle is neutral”, one of my favourite lines from the book, but for the Montagnards, the jungle was home.

SOG teams operating in Laos were vastly outnumbered. Survival didn’t depend on firepower; it depended on what is called a “sensate regime”, a heightened state of sensory awareness. The Montagnards were masters of this.

While an American might smell only rain and rot, a Montagnard scout could detect the distinct olfactory signature of the NVA regiment: the smell of strong, harsh tobacco, the scent of nuoc mam (fish sauce), and the chemical odor of Lye soap.

A Montagnard scout could smell the enemy long before a visual confirmation. They read the micro-terrain, a broken spiderweb, a bent twig, or the sudden silence of birds, to predict an ambush.

We see this in the opening of Cry Havoc, where the team relies on the sensory acuity of their point man to survive the “Green Hell.” The Americans provided the radio links to air support, but the Montagnards provided the access. They unlocked the jungle.

FULRO and the Politics of Resistance

The most tragic element of this history is that the Montagnards were fighting a different war than the Americans.

While the US fought to stop the spread of Communism, the Montagnards fought for autonomy. This coalesced in the formation of FULRO (United Front for the Liberation of Oppressed Races).

The tension between the Montagnards and the South Vietnamese government was so high that in September 1964, a massive Montagnard uprising occurred in five Special Forces camps. They disarmed the South Vietnamese officers and took American advisors hostage, not to harm them, but to use them as leverage to negotiate with Saigon for rights and representation.

This puts the loyalty of characters like Amiuh into perspective. They weren’t fighting for the Republic of South Vietnam; they were fighting for their own survival, hoping the Americans would guarantee their freedom after the war. Amiuh’s ultimate sacrifice, driving a gun truck to save his American teammates during the chaos of the Tet Offensive, is a poignant fictionalization of a very real loyalty.

The Betrayal and the “Lost Battalions”

The tragedy of this partnership lies in its conclusion. The withdrawal of US forces in 1973 was a death sentence for the Montagnard way of life.

Viewed as traitors by the victorious North Vietnamese, the tribes faced brutal retribution. Their lands were confiscated, their leaders executed, and their culture systematically dismantled.

However, the story didn’t end in 1975. In one of the most incredible feats of endurance in military history, remnants of the FULRO army, many former SOG commandos, retreated into the remote jungles of Cambodia. They refused to surrender. For 17 years, these “Lost Battalions” maintained military discipline in the forest, waiting for the Americans to return.

Ultimately, they surrendered in 1992 to the UN.

Why It Matters

Cry Havoc is a thriller, yes. It’s about espionage, assassinations, and the Cold War. But at its core, the scenes in the jungle are a love letter to the Montagnard-SOG partnership.

The character of Amiuh, his bravery, his Catholicism, his fierce protection of his American teammates, is an avatar for thousands of real men who served in MACV-SOG. Men who saved countless American lives at the cost of their own, and who were ultimately left on the wrong side of the fence when the helicopters flew away for the last time.

Today, the largest population of Montagnards outside of Vietnam resides in North Carolina, settled there by the very Green Berets they served with, who spent decades lobbying to bring their brothers home.

When you read about Tom Reece cutting himself loose from a helicopter to save his friends, remember that this spirit was reciprocal. Cry Havoc reminds us that in the secret history of the Vietnam War, the most potent weapon wasn’t a rifle; it was the blood brotherhood between the Green Beret and the Montagnard.

Further Reading