<span>The territory that they acquired was present- day </span>Arizona,California<span>, </span>Colorado<span>, </span>Nevada<span>, </span>New Mexico<span>, </span>Utah<span> and </span>Wyoming<span>.</span>
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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The growing season in the interior plains is roughly "five to seven months" long, although it should be noted that this is not a "rigid" timetable, and sometime the season spans beyond these limits.