Say the Taliban tries to exterminate the Afghan Shia population during their time in power. Would Iran invade and overthrow them or occupy some of the border areas or do nothing at all .
Say the Taliban tries to exterminate the Afghan Shia population during their time in power. Would Iran invade and overthrow them or occupy some of the border areas or do nothing at all .
I'd say that at absolute minimum Iran would be strongly supporting the Northern Alliance and other anti-Taliban groups, with the aim of carving out areas where the Afghan Shia can be relatively safe.
Direct military action is certainly possible - this is OTL 1998.