It was India’s finest hour: when Indian armed forces fought against those of Pakistan to help the Bengali speaking population of East Pakistan from annihilation and give them a new country called Bangladesh. This conflict completely reshaped the sub-continent and today, on the 50th anniversary of the Bangladesh Liberation War, listen to Satyajit Lall who is passionate about military affairs and diplomacy and is writing a book on the 1971 war talking about the reasons and factors which led to India’s greatest victory of all time.