so, when people like cal spencer and mitchell and mitch nelson and so on, arrive, they pull out those things in their backpacks. they swarm the line. the armor retreats, that's when the bombs hit. and that's when they can't reattack the position. and the first couple of times, when i was doing my oral histories and traveling around the country, i would say what happened when the bombs hit? what do the tall do? they didn't really know was going on, because sometimes we observe them through our binoculars emerging a bunker we had missed and, looking, walking out and looking at it and seeing a smoking hole in the ground and looking across the horizon if it came from a tank or some kind of machine that had lobbed it. it didn't occur this was coming from above because some of these jets, these bombers are very high up. could be 15, 20,000 feet. but they're being guided either by two things. or actually three things. a gps retrofit understood the bomb that is being programmed. is almost like your own onstar or garmin you use in your car. leading you to the destination to the gps coordinates