There must be a direct military exchange between Pakistan's armed forces and the armed forces of another sovereign nation, not including UN peacekeeping missions or combined military exercises.

The conflict must result in casualties, either military or civilian, on one or both sides. Minor border skirmishes that have fewer than 10 casualties do not qualify.

Pakistan has an adversarial relationship and history of military conflict with neighboring India, with whom it has fought four wars since independence in 1947: https://en.wikipedia.org/wiki/Indo-Pakistani_wars_and_conflicts

Pakistan also borders Afghanistan, with whom tensions have escalated at times: https://en.wikipedia.org/wiki/Afghanistan%E2%80%93Pakistan_relations