December 16 is a significant day for India and its neighbours Bangladesh and Pakistan. In 1971, India won the war against Pakistan that resulted in the birth of Bangladesh (then East Pakistan).

On this day 47 years ago, Pakistan lost half its country, its forces in the East, and had to publicly surrender to India. It was also the largest military surrender after World War II.
The war started when Pakistan launched air strikes on 11 Indian airbases. It was perhaps the first time in which India's all three forces fought in unison.

• India quickly responded to Pakistan Army's movements in the west and captured around 15,010 kilometres of Pakistan territory.
  The war ended after the chief of the Pakistani forces, General Amir Abdullah Khan Niazi, along with 93,000 troops, surrendered to the joint forces of Indian Army and Bangladesh's Mukti Bahini.

• General A A K Niazi signed the Instrument of Surrender on 16 December 1971 in Dhaka, marking the formation of East Pakistan as the new nation of Bangladesh. Pakistan also lost half of its territory with the birth of Bangladesh.
  The war lasted for just 13 days, and is one of the shortest wars in history. The military confrontation between India and Pakistan occurred from 3 December 1971 to the fall of Dacca (Dhaka) on 16 December 1971.
  The Indian Army brought Pakistani army to its knees, took 93,000 Pakistani prisoners and gave 75 million people of Bangladesh their independence.

• Over 3,800 soldiers of India and Pakistan lost their lives in this war to end the genocide Pakistan had been conducting against the Bengali population of East Pakistan.
  The conflict was a result of the Bangladesh Liberation war, when Bangladesh (then East Pakistan) was fighting to seek freedom from (West) Pakistan. In 1971, Pakistani Army began to commit the barbaric genocide on innocent Bengali population, particularly the minority Hindu population in East Pakistan.