Inter-Services Intelligence activities in Afghanistan

Inter-Services Intelligence (ISI), Pakistan's principal intelligence and covert action agency, has historically conducted a number of clandestine operations in its western neighbor, Afghanistan. ISI's covert support to militant jihadist insurgent groups in Afghanistan, the Pashtun-dominated former Federally Administered Tribal Areas, and Kashmir has earned it a reputation as the primary progenitor of many South Asian jihadist groups.

Source: Wikipedia — Inter-Services Intelligence activities in Afghanistan (CC BY-SA 4.0)