Correct, they can triangulate. But when the US goes to war, we usually blind them electronically, but that won't matter because the enemy will almost always have static records that they can rely on. Now being blinded is a good thing when command centers are mobile, because now there is no way for them to find them. I have though about these hypersonic and drone problems for some time now, and implementing this will not only save lives and equipment, but maybe all, depending on what level we take it, such as applying it to barracks and hangars. A few hundred feet could make all the difference in the world. Would be nice if they acknowledged.