Oh noes, the island could tip over.
THADD is a regional, high altitude interceptor system. It has a higher ceiling and wider coverage area than Patriot. To my knowledge, we have never used it in an active theatre since deployed because there was no threat present to use it against. It is an endoatmospheric system that cannot counter ICBM’s or newer hypersonic missiles. I guess they think Taepodongs would be coming at Guam and they would try to catch them way out and use Patriot as the last line of a layered defense. I don’t think the THAAD arc would extend from Guam to Japan.
I think we have some stuff on Aegis platforms that can catch ICBM’s in boost phase but you have to get on them quick. If they actually have something that can hold together and get to the US mainland and have a warhead that would actually work as a strategic weapon mounted on that vehicle (a big if), the GBI BMD tubes in Alaska are our only real defense IMHO.
Only if all the troops go to one end of the island.