North Korean leader Kim Jong-un has visited the Nampho Shipyard and called for a rapid buildup of naval combat power to counter "hostile acts of the enemies," state media said Wednesday. Kim made the remarks during an on-site inspection at the shipyard Monday, where he was briefed on the shipyard's ongoing upgrades and inspected a new warship under construction, the Korean Central News Agency (KCNA) reported. "It is vital and important requirement of the times to rapidly bolster up the surface and underwater combat power for defending the national sovereignty in the sea under various threats," Kim said. "The recent geopolitical environment and hostile acts of the enemies in the region" prove the need for "the most developed and powerful warship," he added. The report said Kim expressed "great satisfaction" with the new warship, which he said "is incomparably huge and browbeating than the destroyer built last year." While the report did not provide the ship's specifications, it said the vessel is "designed to carry out its complex operational mission in consideration of the present-day war