war there? first, barbara starr joins us from 2 pentagon with the latest. what have you learned, barbara? >> good evening. we know this mission had been planned by the u.s. military over the last several weeks. they were looking at a target in eastern afghanistan, remote mountainous area. there was a complex of isis used tunnels and caves. it was so remote they feel that there was no civilians around. they've been trying to go after them for some time now. so the mission was planned. it was executed. they will now do the damage assessment. they will fly over the target. they're going to have to determine there were no civilian casualties. they say they don't think so. still to be determined. they'll have to find fought the bomb worked as planned because they've never used it in combat.