once upon a time it was pakistan funneling them money ( and probably iran and russia ) these days it’s apparently more saudi arabia, foreign companies paying bribes and extortion to do business there, individual donors, and profits from mining and drugs
the taliban also wouldn’t exist without all of our military equipment past and present that they “liberated” from us. made worse by invading the country and sticking bases full of supplies right there
the taliban isn’t just an afghan generated problem. it’s just that trying to solve it militarily was always a terrible idea. it continually breathed life into the networks that feed them even as we tried to kill the individuals involved