Question

which identifies the importance of dien bien phu?
france began to withdraw from vietnam after vietminh forces defeated french forces at dien bien phu.
the united states committed tens of thousands of troops to repel communist forces immediately after the fall of dien bien phu.
it was made the capital of french indochina in order to better protect the region from communist threats.
communist china established a base of operations in the city from where it aided communist forces against the french.

Explanation:

The Battle of Dien Bien Phu in 1954 was a decisive victory for the Vietminh against the French. This led to the end of major French colonial presence in Indochina and France's subsequent withdrawal from Vietnam. The US did not immediately commit tens of thousands of troops after Dien Bien Phu; that happened later in the 1960s. Dien Bien Phu was never the capital of French - Indochina, which was cities like Saigon and Hanoi at different times. There is no historical evidence of Communist China establishing a base of operations in Dien Bien Phu to aid Communist forces against the French.

Answer:

France began to withdraw from Vietnam after Vietminh forces defeated French forces at Dien Bien Phu.