By: History.com Editors

1954

French defeated at Dien Bien Phu

History.com Editors

Published: February 09, 2010

Last Updated: March 02, 2025

In northwest Vietnam, Ho Chi Minh’s Viet Minh forces decisively defeat the French at Dien Bien Phu, a French stronghold besieged by the Vietnamese communists for 57 days. The Viet Minh victory at Dien Bien Phu signaled the end of French colonial influence in Indochina and cleared the way for the division of Vietnam along the 17th parallel at the conference of Geneva.

On September 2, 1945, hours after the Japanese signed their unconditional surrender in World War II, communist leader Ho Chi Minh proclaimed the independent Democratic Republic of Vietnam, hoping to prevent the French from reclaiming their former colonial possession. In 1946, he hesitantly accepted a French proposal that allowed Vietnam to exist as an autonomous state within the French Union, but fighting broke out when the French tried to reestablish colonial rule. Beginning in 1949, the Viet Minh fought an increasingly effective guerrilla war against France with military and economic assistance from newly Communist China. France received military aid from the United States.

Ho Chi Minh

Learn about the many names and identities of the man who would become the face of the Vietnamese nationalist movement.

In November 1953, the French, weary of jungle warfare, occupied Dien Bien Phu, a small mountain outpost on the Vietnamese border near Laos. Although the Vietnamese rapidly cut off all roads to the fort, the French were confident that they could be supplied by air. The fort was also out in the open, and the French believed that their superior artillery would keep the position safe. In 1954, the Viet Minh army, under General Vo Nguyen Giap, moved against Dien Bien Phu and in March encircled it with 40,000 Communist troops and heavy artillery.

The first Viet Minh assault against the 13,000 entrenched French troops came on March 12, and despite massive air support, the French held only two square miles by late April. On May 7, after 57 days of siege, the French positions collapsed. Although the defeat brought an end to French colonial efforts in Indochina, the United States soon stepped up to fill the vacuum, increasing military aid to South Vietnam and sending the first U.S. military advisers to the country in 1959.

Timeline

Also on This Day in History

Discover more of the major events, famous births, notable deaths and everything else history-making that happened on May 7th

1763

Ottawa Chief Pontiac’s Rebellion against the British begins

Pontiac’s Rebellion begins when a confederacy of Native warriors under Ottawa chief Pontiac attacks the British force at Detroit. After failing to take the fort in their initial assault, Pontiac’s forces, made up of Ottawas and reinforced by Wyandots, Ojibwas and Potawatamis, initiated a siege that would stretch into months.

1824

Beethoven’s Symphony No. 9 debuts

On May 7, 1824, Ludwig van Beethoven’s ninth and final symphony debuts at Vienna’s Theater am Kärntnertor. Having lost his hearing years earlier, the celebrated composer nonetheless “conducts” the first performance of his Ninth Symphony, now widely considered to be one of the greatest pieces of music ever written.

1843

First Japanese immigrant arrives in the U.S.

Called the U.S.'s first ambassador to Japan, a 14-year-old fisherman by the name of Manjiro is considered America's first Japanese immigrant, arriving in the country on May 7, 1843, by way of a whaling ship.

1896

Serial killer H.H. Holmes is hanged in Philadelphia

Dr. H. H. Holmes, one of America’s first well-known serial killers, is hanged in Philadelphia, Pennsylvania.

1915

German submarine sinks Lusitania

On the afternoon of May 7, 1915, the British ocean liner Lusitania is torpedoed without warning by a German submarine off the south coast of Ireland. Within 20 minutes, the vessel sank into the Celtic Sea. Of 1,959 passengers and crew, 1,198 people drowned, including 128 Americans. The attack aroused considerable indignation in the United States, but Germany defended the action, noting that it had issued warnings of its intent to attack all ships, neutral or otherwise, that entered the war zone around Britain.

An illustration of the sinking of the British ocean liner RMS Lusitania, torpedoed by German U-boat U-20 off the old head of Kinsale, Ireland.

1945

Germany surrenders unconditionally to the Allies at Reims

On May 7, 1945, the German High Command, in the person of General Alfred Jodl, signs the unconditional surrender of all German forces, East and West, at Reims, in northeastern France.

1960

Leonid Brezhnev becomes leader of the USSR

Leonid Brezhnev, one of Soviet leader Nikita Khrushchev’s most trusted proteges, is selected as Chairman of the Presidium of the Supreme Soviet—the Soviet equivalent to the presidency. This was another important step in Brezhnev’s rise to power in Russia, a rise that he later capped by taking control of the Soviet Union in 1964.

1984

Vietnam veterans exposed to Agent Orange win $180 million settlement

On May 7, 1984, seven chemical companies, including Dow and Monsanto, agree to pay $180 million to thousands of Vietnam veterans exposed to the chemical herbicide Agent Orange during the war. Lawyers for the two sides announced the surprise out-of-court settlement on the day jury selection was to begin in the case.

1994

Edvard Munch’s “The Scream” recovered after theft

On May 7, 1994, Norway’s most famous painting, “The Scream” by Edvard Munch, is recovered almost three months after it was stolen from a museum in Oslo. The fragile painting was recovered undamaged at a hotel in Asgardstrand, about 40 miles south of Oslo, police said.

NORWAY-ART-MUNCH-THE SCREAM

1998

Daimler-Benz announces purchase of Chrysler Corp.

On May 7, 1998, the German automobile company Daimler-Benz—maker of the world-famous luxury car brand Mercedes-Benz—announces a $36 billion merger with the United States-based Chrysler Corporation.

2004

Marine biologist Richard Thompson coins the term “microplastics”

On May 7, 2004, marine biologist Richard Thompson publishes an article in the journal Science detailing the troubling amount of microscopic plastic fragments and fibers that he and his team have discovered in the world’s oceans and marine habitats. Thompson dubs the debris “microplastics” and questions whether these particles could release harmful chemicals and pose a danger to the environment.

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Citation Information

Article title
French defeated at Dien Bien Phu
Website Name
History
Date Accessed
March 23, 2025
Publisher
A&E Television Networks
Last Updated
March 02, 2025
Original Published Date
February 09, 2010

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