The 1971 India-Pakistan war was a conflict between the two South Asian nations that lasted from December 3rd to December 16th, 1971. The war was the result of tension between the two countries that had been simmering for years but ultimately came to a head over the issue of East Pakistan, which was a province of Pakistan that was seeking greater autonomy.

The war began when Pakistan launched a surprise attack on India, with the aim of taking control of East Pakistan. However, India was able to repel the attack and quickly launched a counter-offensive, capturing large amounts of territory in both East and West Pakistan.

As the war raged on, India gained the upper hand and was able to inflict heavy losses on the Pakistani military. This, combined with the support of Bengali rebels in East Pakistan, proved to be a decisive factor in the outcome of the war.

In the end, India was victorious and was able to establish control over East Pakistan, which became the independent nation of Bangladesh. The war had a significant impact on the region, as it led to a shift in the balance of power between India and Pakistan, and also resulted in the creation of a new country.

Despite the fact that the war only lasted for 13 days, it had a profound effect on the region, and its aftermath is still felt today. The conflict between India and Pakistan continues to be a source of tension and concern for the international community, and the 1971 war remains a significant event in the history of South Asia.