Don't you know the aspects of power for a superpower?

1) Land power
2) Sea power
3) Air Power
4) Space power

The US has all those covered. Besides land power, the other powers are means to project US power without the use of troops. If things to awry in NK, we send carriers, battleships etc who are carrying long range missles and aircraft to go in. We have space power to guide missles and planes more accurately to reduce incidental destruction of aircraft from SAMs because of needless reconneisance.