Military troops are in the air and on the ground in the Bitterroot, assisting with projects across the Bitterroot National Forest. After touching down Tuesday, some of the militarys largest helicopters were hauling supplies up Lost Horse Canyon on Thursday to repair the Selway suspension bridge.(WATCH: U.S. troops get to work assisting the Bitterroot National Forest) U.S. troops get to work assisting Bitterroot National ForestIt's been an absolu…