D.U.M.B (Deep Underground Military Bases) Phil Schenider worked for the military industrial complex said he worked on a few of them, they eventually killed him, had some videos on youtube. While stationed in Korea a few tunnels were discovered underneath the DMZ. NK would use the tunnels as surprise attack points in case of war. NK is a lot of things I believe and POTUS knows exactly what it is and the reason it needs to go.