During the Indo-Pakistan War of 1971 for the liberation of Bangladesh, when Pakistan Army planners predicted India would launch its main attack in the east along the Akhaura–Brahmanbaria axis, it had no brigades available to cover this area, and Pakistan Army moved its 27th brigade from Mymensingh to Akhaura after retaining two battalions of 27th brigade at Mymensingh to form the 93rd Brigade to defend Mymensingh. Pakistan Army's 93,000 troops unconditionally surrendered to the Indian Army and India's local ally Mukti Bahini on 16 December 1971. This day and event is commemorated as the Bijoy Dibos () in Bangladesh and Vijay Diwas in India.