led coalition has been supporting the kurdish arab militias in their fight against the so-called islamic state with the air raids weapons vehicles and training. the offensive against the lost iowa stronghold operation round up has been running for for weeks now but the militias a making slow progress fighters have dug a tunnel system under the city set up combat positions in residential buildings and mines everywhere. isis is brutal they've basically been trapped. at the structures they can and they've laid out minefields everything is basically you know rigged as we'd say so that's a challenge that's all we take most of our casualties we've trained you know. the techniques we've got vehicles but it's a challenge. everybody appreciates. the world