Question

What happend in 1971

Answer 1

The Bangladesh Liberation War begins in March of 1971 after the Pakistan military attacked Bengali civilians. India enters the war on December 3rd of 1971 on the side of East Pakistan (Bangladesh) after Pakistan preemptively attacked Indian airbases. Hope I helped, have a good day!!! :D

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バングラデシュ解放戦争は、パキスタン軍がベンガルの民間人を攻撃した後、1971年3月に始まります。パキスタンが先制攻撃を行った後、1971年12月3日、東パキスタン（バングラデシュ）側でインドが戦争に突入した。:D

Answer 2

The Bangladesh Liberation War. (I don't know if this is what you're going for)

Step-by-step explanation:

The Bangladesh Liberation War begins in March of 1971 after the Pakistan military attacked Bengali civilians. India enters the war on December 3rd of 1971 on the side of East Pakistan (Bangladesh) after Pakistan preemptively attacked Indian airbases.