Afghanistan's Taliban government says its forces killed 28 fighters in Nuristan province who crossed from Pakistan, alleging they were former Afghan security personnel recruited by Pakistan's ISI with promises of asylum and foreign employment. The defence ministry further claimed ISIL fighters backed by Pakistani militias were among the group. Pakistan's information ministry rejected every allegation as "frivolous, baseless and devoid of any truth," denying any involvement by its security forces or intelligence agencies. The incident follows a sharp escalation arc. Last week Pakistan struck 10 locations inside Afghanistan it identified as drone storage and launch sites. Kabul confirmed at least four killed and promised an "appropriate response." A prior Pakistani air strike on September 21 killed what Islamabad called 28 fighters; Afghan officials and the UN confirmed at least three civilian deaths among the casualties. The structural problem is bilateral blame without bilateral mechanism. Pakistan demands Afghanistan act against groups operating from Afghan soil — primarily the Tehrik-i-Taliban Pakistan (TTP) — while Afghanistan accuses Pakistan's intelligence apparatus of manufacturing cross-border insurgency using former Afghan government personnel. Both claims contain elements of truth. Neither government has an incentive to verify the other's. The proxy dimension makes this particularly combustible. If Pakistan is indeed recruiting ex-Afghan security forces, it is weaponizing the human wreckage of the 2021 collapse — people with military training, no state loyalty, and desperate circumstances. If Afghanistan is sheltering TTP elements, it is tolerating attacks on a nuclear-armed neighbor's sovereignty. Both dynamics can be true simultaneously. No mediator exists. The United States, which once brokered (or forced) communication between Islamabad and Kabul, has largely withdrawn from the equation. China has economic interests in both countries but no demonstrated appetite for conflict mediation on the Durand Line. The UN mission confirmed civilian deaths from the September strikes but has no enforcement capacity. The escalation grammar is now established: Pakistani air strike → Taliban condemnation and promise of response → border clash → mutual accusations → repeat. Each cycle normalizes the next. The threshold for Pakistani unilateral strikes inside Afghan territory has dropped from exceptional to routine in under a year. With no diplomatic circuit-breaker and both governments facing domestic constituencies that reward toughness over negotiation, the default trajectory is intensification. The Durand Line — never formally accepted by any Afghan government — remains the world's most dangerous border without a peace process.
