SEOUL – North Korean leader Kim Jong Un observed the test firing of a strategic cruise missile and evaluations of anti-ship, anti-submarine and air defense systems aboard the naval destroyer Kang Kon, state media KCNA reported on Sunday. The tests were conducted on Friday as part of an assessment of the newly built warship's combat systems. They included checks of target-detection and information-processing capabilities, integrated firepower systems, naval guns, automatic cannons and electronic warfare equipment, KCNA said.