The separation of East Pakistan in 1971, resulting in the creation of Bangladesh, was a pivotal and tragic event in Pakistan’s history. It was caused by a combination of political, economic, cultural, and military factors that widened the gap between East and West Pakistan.

Despite being the majority in population, East Pakistanis felt politically marginalized, especially after the 1970 general elections, where Awami League, led by Sheikh Mujibur Rahman, won a majority but was denied the right to form government. This refusal ignited massive protests.

The situation escalated when the military launched Operation Searchlight on 25 March 1971, a brutal crackdown on Bengali political activists, students, and civilians. This sparked a full-scale independence movement in East Pakistan.

India intervened in December 1971 in support of Bengali freedom fighters (Mukti Bahini), leading to the Indo-Pak War. On 16 December 1971, Dhaka fell, and over 90,000 Pakistani troops surrendered—marking one of the largest capitulations since WWII.

This event ended Yahya Khan’s rule, and Zulfikar Ali Bhutto became President. The separation of East Pakistan is often viewed as a result of political denial, military oppression, and lack of national integration.