A missile is launched out of a North Korea lake in a photo released on October 10.

KCNA via REUTERS

In October, North Korea claimed that it had launched an underwater ballistic missile from a lake. It may have been a stunt, but it reflects Pyongyang's long history of subterranean activity. That underground focus is meant to hide North Korea's military advances from the US and its allies.

North Korea's recent missile tests could have borrowed from the plot of a James Bond film.

In October, North...

Continue Reading North Korea's record-setting missile tests are showing off weapons it has tried to keep hidden for decades