Both the opposing sides were led by their army's I Corps. Pakistan's I Corps included three infantry divisions, one armoured division, an armoured brigade backed up by an unknown number of artillery and support units. Furthermore, Pakistan had the advantage of bringing in the reserve troops stationed nearby. The reserves totalled 5 divisions, commanded by Lt. General Irshad Hassan Khan, who as DMI (Director Military Intelligence) had failed to act in the 1965 War in spite of intercepting Indian war plans.