As peace talks between the U.S. and Taliban proceed, the U.N. notes that more civilians have been killed by airstrikes than insurgent attacks this year.
Experts have already warned that the territorial defeat of the self-declared caliphate does not mean that the war is won. Afghanistan offers a warning of how ISIS could resurge.
The American military is closing in an agreement to withdraw its troops in return for the Taliban refusing access to anti-American organizations on its territory.
The attack is the largest on a U.S.-manned based in Afghanistan in years, and occurred as U.S. and Taliban representatives are negotiating a full U.S. troop withdrawal from the country.