On Thursday night, Pakistan struck targets inside Afghanistan. Islamabad says 22 militants died and weapons depots were destroyed. The Taliban says between nine and ten civilians were killed, including women and children. The truth is contested; the escalation is not. This is not a border skirmish. It is the unraveling of a decades-old Pakistani strategy. Pakistan supported the Afghan mujahideen during the Soviet occupation, then backed the Taliban during the 1990s civil war, all in pursuit of 'strategic depth' — a friendly western neighbor to counterbalance India to the east. That strategy delivered the opposite. The Taliban's return to power in 2021 gave the Tehreek-e-Taliban Pakistan (TTP) — an independent organization that fights the Pakistani state — more room and leverage. Pakistan's former proxy ally now shelters the militants attacking Pakistani soldiers and police. The September 18 attack on a police compound in Kohat, Khyber Pakhtunkhwa province, killed 31 people and injured more than 100. A TTP splinter group claimed responsibility. Pakistan accused Afghanistan of providing safe haven. Afghanistan denied it. Airstrikes followed. At the end of September, the Taliban reported 28 killed and 32 captured fighters who had infiltrated from Pakistan's Nuristan province, accusing Islamabad of supporting armed anti-Taliban opposition — a new dimension. Both sides now accuse the other of harboring the other's enemies. The structural problem is the Durand Line, drawn in 1893 by a British diplomat to mark spheres of influence between British India and Afghanistan. It bisects the Pashtun homeland — Afghanistan's largest ethnic group and Pakistan's second largest. The border dispute is not merely territorial; it is identitarian. Many Pashtuns refuse to recognize it. As Conrad Schetter of the Bonn International Center for Conflict Studies puts it, ethnic and nationalist elements play a significant role in the conflict. Pakistan retains one powerful lever: geography. Afghanistan is landlocked. Its trade routes run through Pakistan. Border closures and trade restrictions are real weapons. But even this pressure has limits. The Taliban are diversifying economic and political partnerships, and Pakistan's coercive tools risk pushing the TTP toward the Islamic State in Khorasan Province (IS-K), an outcome worse for everyone. A Council on Foreign Relations analysis notes the Taliban fear exactly this: that cracking down too hard on the TTP drives fighters toward IS-K. Previous ceasefires and Taliban-mediated talks between Pakistan and the TTP failed to resolve the core question: how to prevent attacks on Pakistan from Afghan territory. Thomas Ruttig of the Afghanistan Analysts Network observes that the Taliban simply will not take orders from Islamabad. The personal networks between the Afghan Taliban and TTP are real but do not translate into command authority. Pakistan invested decades building influence in Afghanistan and now finds it cannot cash the check. Chatham House describes the current moment as a significant escalation — a conflict over armed groups and border incidents transforming into direct confrontation between two nation states. Ruttig argues that a return to negotiations, possibly with international mediation, could contain the violence. Pakistani analyst Saqib Ali Khan, writing in The Friday Times, advocates for a reliable Islamabad-Kabul channel, a separate approach for armed groups, and greater involvement of the border population. Schetter adds that long-term economic integration is needed so that the relationship is not defined solely by security and power. None of these solutions are new. The question is whether the incentive structure has finally shifted enough to make them possible.
