1972 — India and Pakistan sign a peace accord, renaming the ceasefire line in Kashmir as the Line of Control, a heavily fortified stretch of military outposts that divide the region between them. Both sides deploy more troops along the frontier, turning it into a heavily fortified stretch of military outposts.

India’s four-day military showdown with Pakistan set several new precedents. For military officials from outside the region, the most intriguing one was Pakistan’s use of advanced Chinese fighter jets and missiles in aerial combat with Western-made counterparts.