Once S Korea has its own GPS which will require about 8 satellites for S Korea to use in Asia, S Korea will no longer need to rely on the US for using smart weapons. No more pressure like GSOMIA from Washington for Japan which was humiliation for S Korea. S Korea must have its own GPS satellites, tactical nuclear weapons and nuclear submarines for its defends. Washington will not risk nuclear war for anyone. Henry Kissinger said "America has no permanent friends or enemies, only interests".
