The formation of Bangladesh resulted from the military operations undertaken in erstwhile East Pakistan by the Indian Armed Forces. The Indian Air Force established air superiority in the first few days which enabled land operations to be executed smoothly. The Indian Army outclassed the Pakistan Army by avoiding capture of towns and built-up areas. They headed for the capital Dacca which was the centre of gravity of the operations. The operations were preceded by detailed planning, logistics build up and war gaming which led to outclassing the enemy in the field.