I suppose it meant S. Korean military. I am not sure if U.S. military are tracking them.
They say that their diesel-powered submarines are small and quiet, making them difficult to track.
21 posted on 08/23/2015 12:34:53 AM PDT by TigerLikesRooster
(The way to crush the bourgeois is to grind them between the millstones of taxation and inflation)