A déjà-vu? Many Afghans, and some foreign analysts, believe Isis-K is being supported by foreign forces, such as Pakistan’s Inter-Services Intelligence. The ISI wants leverage to persuade the Taliban to co-operate in suppressing Tehreek-e-Taliban Pakistan, a jihadist insurgency that has targeted the Pakistan government. Others suspect US intelligence agencies, anti-Taliban warlords and even former members of the Afghan army of collaborating with Isis-K. “We know there are intelligence agencies and networks supporting Isis-K to challenge and create problems for the Taliban government,” Haqpal said. In India, government and intelligence officials have suggested that inter-Taliban rivalry — between the Haqqani network and a powerful Kandahar faction led by Mullah Baradar, the deputy prime minister — is stoking the violence. “There is clear factionalism in the Taliban,” an Indian intelligence source said. “It is possible that one faction is supporting the Isis-K to wipe out the dominance o...