Kim supervised both a landing drill and an anti-landing drill, involving surface ships, pursuit planes and artillery subunits.

"Seeing the daring action of landing units, Kim Jong-un said with pleasure that such surprise landing and attack on the coast would result in a victorious battle," the Korean Central News Agency said in an English dispatch, without disclosing when the drills took place.

"The victory of an amphibious battle depends mainly on how to neutralize the enemy's possible anti-landing movements while getting over its coastal defenses at one go," the KCNA quoted Kim as saying. "He said that, in order to bury at sea any enemy groups attacking to land in the coast of the country, training should be intensified among the units and sub-units of the KPA (Korean People's Army) with the Juche-based idea and tactics on the coastal defense newly set forth by the (ruling Workers') Party."

Juche is the North's founding ideology of self-reliance. (Yonhap)