India, Nov. 3 -- The guns have fallen silent-at least for now-along the volatile Afghanistan-Pakistan border after a series of deadly clashes between Taliban fighters and Pakistani forces. The fragile ceasefire holding this uneasy calm together conceals a far deeper fracture: the unraveling of Pakistan's decades-old doctrine of "strategic depth." What was once the cornerstone of Islamabad's regional vision-a plan to control Kabul through militant proxies and use Afghanistan as a buffer against India-has collapsed into blowback, betrayal, and diminishing influence. The frontier that Pakistan sought to dominate has turned into a front of confrontation. For New Delhi, however, this upheaval marks not just a shift in regional dynamics but a p...