"Operation Chengiz Khan" . "* Formal commencement of theIndo-Pakistani War of 1971" . "Pakistan" . "formal declaration of hostilities" . "*24pxIndian Air Force" . "the outbreak" . "SAMmissiles" . "1971-12-03" . . . "Amritsar and Halwara severely cratered" . "air strikes" . "Preemptive strikes" . . "India" . . . "a pre-emptive strike on Indian Air Force bases" . . . . "a pre-emptive strike" . "a series of pre-emptive strikes" . "Operation Chengiz Khan" . . . "the formal declaration of war" . "first night" . "''Chengiz Khan''" . "pre-emptive strikes on 3 December" . "24pxAnti-aircraft guns" . "Pakistani aggression" . "preemptive strikes" . . . "pre-emptive airstrikes" . "preemptive airstrikes" . "pre-emptive strikes" . "24px[[#The first strikes" . "Pakistani failure" . "preemptive air strikes" . . . . . "*24pxPakistan Air Force" . "1 radar station destroyed" . "pre-emptive strike" . "failed preemptive strikes" . "the preemptive strike by" . "preemptive PAF strikes" . . . . . "Minor damage to most other airfields. Most airfields repaired within same night." .