The North Korean People's Army recently sent an urgent order to naval troops to defend the "invariable maritime demarcation line in the West Sea," according to Daily NK on Tuesday.

The Army was referring to its own delineation of the maritime border, which differs from the Northern Limit Line drawn up by the U.S. and its allies after the Korean War.

The Army ordered them "to defeat any enemy attacks at sea immediately and resolutely," "never to be carried along by the current mood of peace between the two Koreas."

