President Davis replaced General Johnston with General John Bell Hood, because Hood is more aggressive than Johnston. President Davis hoped that Hood can do more other than manage a fighting retreat. However, General Hood had no time to organize and prepare his army to attack the Union forces at Peachtree Creek on July 20, when he assumed command.
The major significance of the battle of Dien Bien Phu is that the Vietminh defeated the french and ended the colonial rule.
<h3>What do you mean by the battle of Dien Bien Phu?</h3>
The battle of Dien Bien Phu was important because it was this battle that convinced the french to leave Vietnam in the Indochina war.
The battle of Dien Bien Phu brought an end to French colonial rule in Vietnam.
Therefore, A is the correct option.
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