May 7, 1954
Vietnamese forces occupy the French command post at Dien Bien Phu and the French commander orders his
troops to cease fire. The battle had lasted 55 days. Three thousand French troops were killed, 8,000 wounded. The Viet Minh
suffered much worse, with 8,000 dead and 12,000 wounded, but the Vietnamese victory shattered France's resolve to carry on
A specialized North Vietnamese Army unit, Group 559, is formed to create a supply route from North Vietnam
to Vietcong forces in South Vietnam. With the approval of Prince Sihanouk of Cambodia, Group 559 develops a primitive route
along the Vietnamese/Cambodian border, with offshoots into Vietnam along its entire length. This eventually becomes known
as the Ho Chi Minh Trail.
President John F. Kennedy orders more help for the South Vietnamese government in its war against the
Vietcong guerrillas. U.S. backing includes new equipment and more than 3,000 military advisors and support personnel.
January 12, 1962
In Operation Chopper, helicopters flown by U.S. Army pilots ferry 1,000 South Vietnamese soldiers to
sweep a NLF stronghold near Saigon. It marks America's first combat missions against the Vietcong.
Operation Ranchhand begins. The goal of Ranchhand is to clear vegetation alongside highways, making it
more difficult for the Vietcong to conceal themselves for ambushes. As the war continues, the scope of Ranchhand increases.
Vast tracts of forest are sprayed with "Agent Orange," an herbicide containing the deadly chemical Dioxin. Guerrilla trails
and base areas are exposed, and crops that might feed Vietcong units are destroyed.
January 2, 1963
At the hamlet of Ap Bac, the Vietcong 514th Battalion and local guerrilla forces ambush the South Vietnamese
Army's 7th division. For the first time, the Vietcong stand their ground against American machinery and South Vietnamese soldiers.
Almost 400 South Vietnamese are killed or wounded. Three American advisors are slain.
April - June 1964
American air power in Southeast Asia is massively reinforced. Two aircraft carriers arrive off the Vietnamese
coast prompted by a North Vietnamese offensive in Laos.
July 30, 1964
On this night, South Vietnamese commandos attack two small North Vietnamese islands in the Gulf of Tonkin.
The U.S. destroyer Maddox, an electronic spy ship, is 123 miles south with orders to electronically simulate an air attack
to draw North Vietnamese boats away from the commandos.
August 4, 1964
The captain of the U.S.S. Maddox reports that his vessel has been fired on and that an attack is imminent.
Though he later says that no attack took place, six hours after the initial report, a retaliation against North Vietnam is
ordered by President Johnson. American jets bomb two naval bases, and destroy a major oil facility. Two U.S. planes are downed
in the attack.
August 7, 1964
The U.S. congress passes the Gulf of Tonkin Resolution, giving President Johnson the power to take whatever
actions he sees necessary to defend southeast Asia.
China, North Vietnam's neighbor and ally, successfully tests an atomic bomb.
November 1, 1964
Two days before the U.S. presidential election, Vietcong mortars shell Bien Hoa Air Base near Saigon.
Four Americans are killed, 76 wounded. Five B-57 bombers are destroyed, and 15 are damaged.
January 1 - February 7, 1965
Vietcong forces mount a series of attacks across South Vietnam. They briefly seize control of Binh Gia,
a village only 40 miles from Saigon. Two hundred South Vietnamese troops are killed near Binh Gia, along with five American
February 7, 1965
A U.S. helicopter base and advisory compound in the central highlands of South Vietnam is attacked by
NLF commandos. Nine Americans are killed and more than 70 are wounded. President Johnson immediately orders U.S. Navy fighter-bombers
to attack military targets just inside North Vietnam.
February 10, 1965
A Vietcong-placed bomb explodes in a hotel in Qui Nonh, killing 23 American servicemen.
February 13, 1965
President Johnson authorizes Operation Rolling Thunder, a limited but long lasting bombing offensive.
Its aim is to force North Vietnam to stop supporting Vietcong guerrillas in the South.
March 2, 1965
After a series of delays, the first bombing raids of Rolling Thunder are flown.
April 3, 1965
An American campaign against North Vietnam's transport system begins. In a month-long offensive, Navy
and Air Force planes hit bridges, road and rail junctions, truck parks and supply depots.
April 7, 1965
The U.S. offers North Vietnam economic aid in exchange for peace, but the offer is summarily rejected.
Two weeks later, President Johnson raises America's combat strength in Vietnam to more than 60,000 troops. Allied forces from
Korea and Australia are added as a sign of international support.
May 11, 1965
Two and a half thousand Vietcong troops attack Song Be, a South Vietnamese provincial capital. After
two days of fierce battles in and around the town, the Vietcong withdraw.
June 10, 1965
At Dong Xai, a South Vietnamese Army district headquarters and American Special Forces camp is overrun
by a full Vietcong regiment. U.S. air attacks eventually drive the Vietcong away.
June 27, 1965
General William Westmoreland launches the first purely offensive operation by American ground forces
in Vietnam, sweeping into NLF territory just northwest of Saigon.
August 17, 1965
After a deserter from the 1st Vietcong regiment reveals that an attack is imminent against the U.S. Marine
base at Chu Lai, the American army launches Operation Starlite. In this, the first major battle of the Vietnam War, the United
States scores a resounding victory. Ground forces, artillery from Chu Lai, ships and air support combine to kill nearly 700
Vietcong soldiers. U.S. forces sustain 45 dead and more than 200 wounded.
September - October 1965
After the North Vietnamese Army attacks a Special Forces camp at Plei Mei, the U.S. 1st Air Cavalry is
deployed against enemy regiments that identified in the vicinity of the camp. The result is the battle of the Ia Drang. For
35 days, the division pursues and fights the 32d, 33d, and 66th North Vietnamese Regiments until the enemy, suffering heavy
casualties, returns to bases in Cambodia.
November 17, 1965
Elements of the 66th North Vietnamese Regiment moving east toward Plei Mei encounter and ambush an American
battalion. Neither reinforcements nor effective firepower can be brought in. When fighting ends that night, 60 percent of
the Americans were casualties, and almost one of every three soldiers in the battalion had been killed.
January 8, 1966
U.S. forces launch Operation Crimp. Deploying nearly 8,000 troops, it is the largest American operation
of the war. The goal of the campaign is to capture the Vietcong's headquarters for the Saigon area, which is believed to be
located in the district of Chu Chi. Though the area in Chu Chi is razed and repeatedly patrolled, American forces fail to
locate any significant Vietcong base.
Hoping for head-on clashes with the enemy, U.S. forces launch four search and destroy missions in the
month of February. Although there are two minor clashes with Vietcong regiments, there are no major conflicts.
March 5, 1966
The 272nd Regiment of the Vietcong 9th Division attack a battalion of the American 3rd Brigade at Lo
Ke. U.S. air support succeeds in bombing the attackers into retreat. Two days later, the American 1st Brigade and a battalion
of the 173rd Airborne are attacked by a Vietcong regiment, which is driven away by artillery fire.
April - May 1966
In Operation Birmingham, more than 5,000 U.S. troops, backed by huge numbers of helicopters and armored
vehicles, sweep the area around north of Saigon. There are small scale actions between both armies, but over a three week
period, only 100 Vietcong are killed. Most battles are dictated by the Vietcong, who prove elusive.
Late May - June 1966
In late May 1966, the North Vietnamese 324B Division crosses the Demilitarized Zone (DMZ) and encounters
a Marine battalion. The NVA holds their ground and the largest battle of the war to date breaks out near Dong Ha. Most of
the 3rd Marine Division, some 5,000 men in five battalions, heads north. In Operation Hastings, the Marines backed by South
Vietnamese Army troops, the heavy guns of U.S. warships and their artillery and air power drive the NVA back over the DMZ
in three weeks.
June 30, 1966
On Route 13, which links Vietnam to the Cambodian border, American forces are brutally assaulted by the
Vietcong. Only American air and artillery support prevents a complete disaster.
Heavy fighting near Con Thien kills nearly 1,300 North Vietnamese troops.
The Vietcong's 9th Division, having recovered from battles from the previous July, prepares for a new
offensive. Losses in men and equipment have been replaced by supplies and reinforcements sent down the Ho Chi Minh trail from
September 14, 1966
In a new mission code-named Operation Attleboro, the U.S. 196th Brigade and 22,000 South Vietnamese troops
begin aggressive search and destroy sweeps through Tay Ninh Province. Almost immediately, huge caches of supplies belonging
to the NLF 9th Division are discovered, but again, there is no head-to-head conflict. The mission ends after six weeks, with
more than 1,000 Vietcong and 150 Americans killed.
End of 1966
By the end of 1966, American forces in Vietnam reach 385,000 men, plus an additional 60,000 sailors stationed
offshore. More than 6,000 Americans have been killed in this year, and 30,000 have been wounded. In comparison, an estimated
61,000 Vietcong have been killed. However, their troops now numbered over 280,000.
January - May 1967
Two North Vietnamese divisions, operating out of the DMZ that separates North and South Vietnam, launch
heavy bombardments of American bases south of the DMZ. These bases include Khe Sanh, the Rockpile, Cam Lo, Dong Ha, Con Thien
and Gio Linh.
January 8, 1967
America forces begin Operation Cedar Falls, which is intended to drive Vietcong forces from the Iron
Triangle, a 60 square mile area lying between the Saigon River and Route 13. Nearly 16,000 American troops and 14,000 soldiers
of the South Vietnamese Army move into the Iron Triangle, but they encounter no major resistance. Huge quantities of enemy
supplies are captured. Over 19 days, 72 Americans are killed, victims mostly of snipers emerging from concealed tunnels and
booby traps. Seven hundred and twenty Vietcong are killed.
February 21, 1967
In one of the largest air-mobile assaults ever, 240 helicopters sweep over Tay Ninh province, beginning
Operation Junction City. The goal of Junction City is to destroy Vietcong bases and the Vietcong military headquarters for
South Vietnam, all of which are located in War Zone C, north of Saigon. Some 30,000 U.S. troops take part in the mission,
joined by 5,000 men of the South Vietnamese Army. After 72 days, Junction City ends. American forces succeed in capturing
large quantities of stores, equipment and weapons, but there are no large, decisive battles.
April 24, 1967
American attacks on North Vietnam's airfields begin. The attacks inflict heavy damage on runways and
installations. By the end of the year, all but one of the North's Mig bases has been hit.
Desperate air battles rage in the skies over Hanoi and Haiphong. America air forces shoot down 26 North
Vietnamese jets, decreasing the North's pilot strength by half.
Late May 1967
In the Central Highlands of South Vietnam, Americans intercept North Vietnamese Army units moving in
from Cambodia. Nine days of continuous battles leave hundreds of North Vietnamese soldiers dead.
In Hanoi, as Communist forces are building up for the Tet Offensive, 200 senior officials are arrested
in a crackdown on opponents of the Tet strategy.
In mid-January 1968 in the remote northwest corner of South Vietnam, elements of three NVA divisions
begin to mass near the Marine base at Khe Sanh. The ominous proportions of the build-up lead the U.S. commanders to expect
a major offensive in the northern provinces.
January 21, 1968
At 5:30 a.m., a shattering barrage of shells, mortars and rockets slam into the Marine base at Khe Sanh.
Eighteen Marines are killed instantly, 40 are wounded. The initial attack continues for two days.
January 30 - 31, 1968
On the Tet holiday, Vietcong units surge into action over the length and breadth of South Vietnam. In
more than 100 cities and towns, shock attacks by Vietcong sapper-commandos are followed by wave after wave of supporting troops.
By the end of the city battles, 37,000 Vietcong troops deployed for Tet have been killed. Many more had been wounded or captured,
and the fighting had created more than a half million civilian refugees. Casualties included most of the Vietcong's best fighters,
political officers and secret organizers; for the guerillas, Tet is nothing less than a catastrophe. But for the Americans,
who lost 2,500 men, it is a serious blow to public support.
February 23, 1968
Over 1,300 artillery rounds hit the Marine base at Khe Sanh and its outposts, more than on any previous
day of attacks. To withstand the constant assaults, bunkers at Khe Sanh are rebuilt to withstand 82mm mortar rounds.
March 6, 1968
While Marines wait for a massive assault, NVA forces retreat into the jungle around Khe Sanh. For the
next three weeks, things are relatively quiet around the base.
March 11, 1968
Massive search and destroy sweeps are launched against Vietcong remnants around Saigon and other parts
of South Vietnam.
March 16, 1968
In the hamlet of My Lai, U.S. Charlie Company kills about two hundred civilians. Although only one member
of the division is tried and found guilty of war crimes, the repercussions of the atrocity is felt throughout the Army. However
rare, such acts undid the benefit of countless hours of civic action by Army units and individual soldiers and raised unsettling
questions about the conduct of the war.
March 22, 1968
Without warning, a massive North Vietnamese barrage slams into Khe Sanh. More than 1,000 rounds hit the
base, at a rate of a hundred every hour. At the same time, electronic sensors around Khe Sanh indicate NVA troop movements.
American forces reply with heavy bombing.
April 8, 1968
U.S. forces in Operation Pegasus finally retake Route 9, ending the siege of Khe Sanh. A 77 day battle,
Khe Sanh had been the biggest single battle of the Vietnam War to that point. The official assessment of the North Vietnamese
Army dead is just over 1,600 killed, with two divisions all but annihilated. But thousands more were probably killed by American
With strong, highly mobile American forces now in the area, and the base no longer needed for defense,
General Westmoreland approves the abandonment and demolition of Khe Sanh.
November 1, 1968
After three-and-a-half years, Operation Rolling Thunder comes to an end. In total, the campaign had cost
more than 900 American aircraft. Eight hundred and eighteen pilots are dead or missing, and hundreds are in captivity. Nearly
120 Vietnamese planes have been destroyed in air combat or accidents, or by friendly fire. According to U.S. estimates, 182,000
North Vietnamese civilians have been killed. Twenty thousand Chinese support personnel also have been casualties of the bombing.
President Richard M. Nixon takes office as the new President of the United States. With regard to Vietnam,
he promises to achieve "Peace With Honor." His aim is to negotiate a settlement that will allow the half million U.S. troops
in Vietnam to be withdrawn, while still allowing South Vietnam to survive.
In spite of government restrictions, President Nixon authorizes Operation Menu, the bombing of North
Vietnamese and Vietcong bases within Cambodia. Over the following four years, U.S. forces will drop more than a half million
tons of bombs on Cambodia.
February 22, 1969
In a major offensive, assault teams and artillery attack American bases all over South Vietnam, killing
1,140 Americans. At the same time, South Vietnamese towns and cities are also hit. The heaviest fighting is around Saigon,
but fights rage all over South Vietnam. Eventually, American artillery and airpower overwhelm the Vietcong offensive.
U.S. combat deaths in Vietnam exceed the 33,629 men killed in the Korean War.
June 8, 1969
President Nixon meets with South Vietnamese President Nguyen Van Thieu on Midway Island in the Pacific,
and announces that 25,000 U.S. troops will be withdrawn immediately.
April 29, 1970
South Vietnamese troops attack into Cambodia, pushing toward Vietcong bases. Two days later, a U.S. force
of 30,000 -- including three U.S. divisions -- mount a second attack. Operations in Cambodia last for 60 days, and uncover
vast North Vietnamese jungle supply depots. They capture 28,500 weapons, as well as over 16 million rounds of small arms ammunition,
and 14 million pounds of rice. Although most Vietcong manage to escape across the Mekong, there are over 10,000 casualties.
February 8, 1971
In Operation Lam Son 719, three South Vietnamese divisions drive into Laos to attack two major enemy
bases. Unknowingly, they are walking into a North Vietnamese trap. Over the next month, more than 9,000 South Vietnamese troops
are killed or wounded. More than two thirds of the South Vietnamese Army's armored vehicles are destroyed, along with hundreds
of U.S. helicopters and planes.
While herbicides containing Dioxin were banned for use by the U.S. Department of Agriculture in 1968,
spraying of Agent Orange continues in Vietnam until 1971. Operation Ranchhand has sprayed 11 million gallons of Agent Orange
-- containing 240 pounds of the lethal chemical Dioxin -- on South Vietnam. More than one seventh of the country's total area
has been laid waste.
January 1, 1972
Only 133,000 U.S. servicemen remain in South Vietnam. Two thirds of America's troops have gone in two
years. The ground war is now almost exclusively the responsibility of South Vietnam, which has over 1,000,000 men enlisted
in its armed forces.
March 30, 1972
Massed North Vietnamese Army artillery open a shattering barrage, targeting South Vietnamese positions
across the DMZ. Upwards of 20,000 NVA troops cross the DMZ, forcing the South Vietnamese units into a retreat. The Southern
defense is thrown into complete chaos. Intelligence reports had predicted a Northern attack, but no one had expected it to
come on the DMZ.
April 1, 1972
North Vietnamese soldiers push toward the city of Hue, which is defended by a South Vietnamese division
and a division of U.S. Marines. But by April 9, the NVA are forced to halt attacks and resupply.
April 13, 1972
In an assault spearheaded by tanks, NVA troops manage to seize control of the northern part of the city.
But the 4,000 South Vietnamese men defending the city, reinforced by elite airborne units, hold their positions and launch
furious counterattacks. American B-52 bombers also help with the defense. A month later, Vietcong forces withdraw.
April 27, 1972
Two weeks after the initial attack, North Vietnamese forces again battle toward Quang Tri City. The defending
South Vietnamese division retreats. By April 29, the NVA takes Dong Ha, and by May 1, Quang Tri City.
July 19, 1972
With U.S. air support, the South Vietnamese Army begins a drive to recapture Binh Dinh province and its
cities. The battles last until September 15, by which time Quong Tri has been reduced to rubble. Nevertheless, the NVA retains
control of the northern part of the province.
December 13, 1972
In Paris, peace talks between the North Vietnamese and the Americans breakdown.
December 18, 1972
By order of the president, a new bombing campaign starts against the North Vietnamese. Operation Linebacker
Two lasts for 12 days, including a three day bombing period by up to 120 B-52s. Strategic surgical strikes are planned on
fighter airfields, transport targets and supply depots in and around Hanoi and Haiphong. U.S. aircraft drop more than 20,000
tons of bombs in this operation. Twenty-six U.S. planes are lost, and 93 airmen are killed, captured or missing. North Vietnam
admits to between 1,300 and 1,600 dead.
January 8, 1973
North Vietnam and the United States resume peace talks in Paris.
January 27, 1973
All warring parties in the Vietnam War sign a cease fire.
The last American combat soldiers leave South Vietnam, though military advisors and Marines, who are
protecting U.S. installations, remain. For the United States, the war is officially over. Of the more than 3 million Americans
who have served in the war, almost 58,000 are dead, and over 1,000 are missing in action. Some 150,000 Americans were seriously
Though they are still too weak to launch a full-scale offensive, the North Vietnamese have rebuilt their
divisions in the South, and have captured key areas.
August 9, 1974
President Richard M. Nixon resigns, leaving South Vietnam without its strongest advocate.
December 26, 1974
The 7th North Vietnamese Army division captures Dong Xoai.
January 6, 1975
In a disastrous loss for the South Vietnamese, the NVA take Phuoc Long city and the surrounding province.
The attack, a blatant violation of the Paris peace agreement, produces no retaliation from the United States.
March 1, 1975
A powerful NVA offensive is unleashed in the Central Highlands of South Vietnam. The resulting South
Vietnamese retreat is chaotic and costly, with nearly 60,000 troops dead or missing.
Another NVA offensive sends 100,000 soldiers against the major cities of Quang Tri, Hue and Da Nang.
Backed by powerful armored forces and eight full regiments of artillery, they quickly succeed in capturing Quang Tri province.
March 25, 1975
Hue, South Vietnam's third largest city, falls to the North Vietnamese Army.
Early April 1975
Five weeks into its campaign, the North Vietnamese Army has made stunning gains. Twelve provinces and
more than eight million people are under its control. The South Vietnamese Army has lost its best units, over a third of its
men, and almost half its weapons.
April 29, 1975
U.S. Marines and Air Force helicopters, flying from carriers off-shore, begin a massive airlift. In 18
hours, over 1,000 American civilians and almost 7,000 South Vietnamese refugees are flown out of Saigon.
April 30, 1975
At 4:03 a.m., two U.S. Marines are killed in a rocket attack at Saigon's Tan Son Nhut airport. They are
the last Americans to die in the Vietnam War. At dawn, the last Marines of the force guarding the U.S. embassy lift off. Only
hours later, looters ransack the embassy, and North Vietnamese tanks role into Saigon, ending the war. In 15 years, nearly
a million NVA and Vietcong troops and a quarter of a million South Vietnamese soldiers have died. Hundreds of thousands of
civilians had been killed