The “Walking Dead”: The Story of 1st Battalion, 9th Marines
Few unit nicknames in the Marine Corps carry the weight of “The Walking Dead.”
It belonged to the Marines and sailors of 1st Battalion, 9th Marine Regiment—a battalion that fought from the islands of the Pacific to the jungles and mountains of Vietnam, and later served in Iraq and Afghanistan.
The name became inseparably connected to 1/9 during the Vietnam War, where the battalion endured some of the longest and most punishing combat experienced by any Marine unit.
Companies were shattered and rebuilt with replacements. Marines survived one operation only to return to the field for another. The battalion fought near the Demilitarized Zone, reinforced Khe Sanh and pushed into the remote Da Krong Valley during Operation Dewey Canyon.
The nickname was not an exaggeration created for recruiting posters. It reflected what other Marines saw when 1/9 returned from battle again and again despite losses that would have destroyed the fighting ability of an ordinary unit.
Born During World War I
The history of 1st Battalion, 9th Marines began during World War I.
The unit was originally activated in November 1917 at Quantico, Virginia, as part of the 9th Marine Regiment. Instead of joining the 5th and 6th Marines in France, the regiment served in the Caribbean and the United States before being deactivated in 1919.
The battalion returned to active service in March 1942, only months after the attack on Pearl Harbor.
It was assigned to the 3rd Marine Division and deployed to the Pacific, where it participated in the campaigns for Bougainville, Guam and Iwo Jima.
Those battles established 1/9’s reputation long before the unit became known as the Walking Dead.
Bougainville, Guam and Iwo Jima
On Bougainville, the battalion fought through dense jungle, deep mud and heavily defended Japanese positions as Marines established and protected an Allied perimeter around Cape Torokina.
The island’s terrain foreshadowed some of the conditions later generations of 1/9 Marines would encounter in Vietnam. Visibility was limited, movement was exhausting and Japanese troops used the jungle to conceal bunkers, ambushes and infiltration routes.
During the Battle of Guam in 1944, Pfc. Frank Witek of 1/9 repeatedly exposed himself to enemy fire while attacking Japanese positions. He fired an automatic rifle while standing upright to protect his fellow Marines and then moved alone against a Japanese machine-gun position.
Witek was killed during the attack. He was posthumously awarded the Medal of Honor.
The battalion landed on Iwo Jima in February 1945 and fought across one of the most heavily fortified islands in the Pacific. Japanese defenders occupied caves, tunnels and concrete positions that had to be eliminated individually.
On March 3, 2nd Lt. John Leims led his platoon against fortified Japanese positions despite being wounded. He remained exposed to enemy fire while directing his Marines and coordinating the evacuation of casualties.
Leims survived and received the Medal of Honor.
After Japan surrendered, 1/9 returned to the United States and was deactivated at the end of 1945.
Its most costly battles were still ahead.
The Battalion Arrives in Vietnam
The battalion entered the Vietnam War in June 1965 as Marine forces rapidly expanded their presence in South Vietnam.
At first, American leaders expected Marines to secure bases, patrol populated areas and prevent Viet Cong forces from threatening important installations.
The war soon changed.
North Vietnamese Army units moved south in growing numbers and began challenging American forces near the Demilitarized Zone. What had often been described as a counterinsurgency increasingly included conventional battles against organized enemy regiments supported by artillery, mortars and rockets.
The Marines of 1/9 operated in some of the most dangerous areas of the country.
They conducted patrols, sweeps and search operations through villages, rice paddies and jungle. Mines, booby traps and snipers could inflict casualties even when no major enemy unit was present.
A patrol might go days without contact and then suddenly walk into a carefully prepared ambush.
As the battalion moved north toward the DMZ, the fighting became more intense.
How They Became the Walking Dead
The exact origin of the nickname “The Walking Dead” is uncertain.
One popular story claims that North Vietnamese leaders considered the battalion already destroyed and used words translated as “walking dead” to describe its remaining Marines. Some versions even claim that Gen. Võ Nguyên Giáp promised to annihilate 1/9 as a gift for North Vietnamese leader Ho Chi Minh.
Firm documentation supporting those specific stories is difficult to find.
Marine Corps historians generally connect the nickname to the battalion’s extraordinarily high casualty rate and its ability to continue operating after repeated losses.
Whatever its precise origin, the name fit.
Marines arrived as replacements, joined rifle companies and sometimes became casualties before they had learned the names of everyone in their squads. Experienced Marines carried an increasing burden as new men entered the battalion.
Over time, thousands of Marines and Navy corpsmen passed through 1/9. Hundreds were killed, and many more were wounded.
The battalion was repeatedly reduced by casualties but never permanently removed from combat.
The Walking Dead kept returning to the field.
Fighting Along the DMZ
The Demilitarized Zone was supposed to separate North and South Vietnam. Instead, it became one of the war’s most violent battlefields.
North Vietnamese troops crossed the region, established artillery positions and built fortified base areas near the border. Marine units attempted to locate and destroy them while defending bases such as Con Thien, Gio Linh, Camp Carroll and Khe Sanh.
The terrain included thick jungle, steep hills and areas stripped bare by artillery and defoliants. North Vietnamese forces could move through concealed routes, attack a Marine position and withdraw across the border or into prepared defenses.
Artillery fired from north of the DMZ could strike Marine bases while remaining difficult to reach with American ground forces.
The Marines called part of the region “Leatherneck Square.” It was bounded by several bases and strongpoints that were repeatedly attacked by rockets, mortars and heavy artillery.
For the Marines of 1/9, movement through the area meant constant exposure to ambushes and bombardment.
Operation Buffalo
The battalion’s most devastating single day came during Operation Buffalo.
On July 2, 1967, Marines from Bravo Company moved through an area north of Con Thien near a place known as “The Marketplace.” Alpha Company operated nearby.
North Vietnamese troops had prepared a large ambush. They allowed portions of the Marine force to enter the kill zone before opening fire with rifles, machine guns, mortars and other weapons.
The initial attack struck with overwhelming force.
Officers, radio operators and other key Marines were killed or wounded. Enemy fire separated units and made it extremely difficult to evacuate casualties.
North Vietnamese soldiers attempted to remain close to the Marines, a tactic sometimes called “hugging” the American position. By staying near the Marine lines, they hoped to prevent the effective use of artillery and airstrikes.
The Marines fought in small groups as the command structure broke down around them. Wounded men continued firing. Riflemen attempted to reach trapped Marines while artillery and aircraft attacked enemy positions dangerously close to friendly forces.
Alpha Company moved to assist but also encountered heavy resistance.
By the end of the day, the two companies had suffered catastrophic losses. Eighty-four Marines were killed, approximately 190 were wounded and nine were initially listed as missing.
Only a fraction of the Marines who entered the battle remained physically capable of continuing the fight.
It was one of the deadliest single days for the Marine Corps during the Vietnam War.
Recovering the Fallen
The fighting did not end when the surviving Marines withdrew.
Other elements of 1/9, supported by tanks, artillery and aircraft, fought to reach the ambush site and recover the dead and wounded. North Vietnamese forces remained in the area and continued resisting.
The recovery carried enormous importance for the battalion. Marines would not willingly leave their own behind, even when returning to the battlefield meant facing the same enemy positions that had destroyed much of the original force.
Operation Buffalo continued for nearly two weeks as Marine units attacked North Vietnamese forces throughout the area.
The battle revealed the strength of the enemy near the DMZ and demonstrated how quickly a Marine infantry company could be devastated by a well-planned regimental ambush.
For 1/9, July 2 became a defining date.
The Walking Dead had suffered losses that appeared impossible to absorb. Yet the battalion reorganized, received replacements and continued fighting.
Sergeant Walter Singleton
Several months before Operation Buffalo, 1/9 had lost another Marine whose actions became part of the battalion’s legacy.
On March 24, 1967, Sgt. Walter Singleton served as a supply sergeant with Alpha Company during an operation near Gio Linh.
When the company came under intense fire, Singleton left the relative safety of his position and moved forward to assist the engaged Marines. He carried ammunition across exposed ground and helped evacuate casualties.
Although wounded, he continued advancing against enemy positions. Singleton attacked with grenades and rifle fire, drawing attention away from other Marines.
He was killed while pressing the assault.
Singleton was posthumously awarded the Medal of Honor. His actions reflected an important truth about Marine infantry battalions: job titles could become secondary when a unit was fighting for survival.
He was officially a supply Marine. When his company needed another rifleman, he became one.
Reinforcing Khe Sanh
In January 1968, North Vietnamese forces surrounded Khe Sanh Combat Base in northwestern South Vietnam.
The base was located near Laos and south of the DMZ. Thousands of North Vietnamese troops occupied the surrounding hills and attacked the Marine positions with artillery, rockets and mortars.
Elements of 1/9 were sent into the Khe Sanh area as the American command reinforced the base.
For 77 days, Marines and allied troops endured bombardments that sometimes sent more than 1,000 enemy rounds into their positions in a single day.
Aircraft delivered supplies and evacuated casualties while American bombers, fighters and artillery attacked North Vietnamese positions around the valley.
The Marines occupied the main combat base and a network of hill outposts. Every movement could draw enemy fire.
For the Marines of 1/9, Khe Sanh was another chapter in a pattern that had come to define their Vietnam service: an isolated battlefield, an enemy with significant numerical strength and a mission that required holding regardless of the cost.
The base did not fall.
Operation Dewey Canyon
In early 1969, the 9th Marines entered the Da Krong Valley during Operation Dewey Canyon.
The operation targeted a major North Vietnamese supply and staging area near the Laotian border. Enemy troops used the region to move weapons, ammunition and supplies into South Vietnam.
The terrain was among the most difficult Marines encountered during the war. Steep mountains, dense jungle, rain and low clouds complicated every movement.
Helicopters carried Marines and artillery into remote landing zones. Units then moved along ridgelines and through valleys searching for enemy bases and supp