It eventually made some quick and initial gains, including the capture of around 5795 sqmi of Pakistani territory; this land gained by India in Azad Kashmir, Punjab and Sindh sectors was later ceded in the Simla Agreement of 1972, as a gesture of goodwill Casualties inflicted to Pakistan Army's I Corps, II Corps, and Pakistan Marines' Punjab detachment were very high, and many soldiers and marines perished due to lack of operational planning and lack of coordination within the marine-army formations against Indian Army's Southern and Western Commands.