The terrain on the western front is diverse—ranging from mountains and plains to deserts. It is divided into the northern and southern sectors. Jammu and Kashmir was the responsibility of the 15 Corps, Thakurpur-Pathankot-Samba was with 1 Corps, and 11 Corps was responsible for the defence of Punjab and Ganganagar district of Rajasthan. The Bikaner and Kutch sectors had both regular infantry and Border Security Force with little armour or artillery support.