North Korea test-fired, on Tuesday, two strategic cruise missiles and three anti-warship missiles as part of an "operational efficiency test".South Korea's Yonhap News Agency reported that North Korean leader Kim Jong-un has once again overseen the test-firing of strategic cruise and anti-warship missiles from the destroyer Choe Hyon, stressing that the country's top priority is to bolster a nuclear deterrent.Kim expressed great satisfaction over the fact that the preparedness of our army's strategic action has been strengthened in a qualitative way with various achievements recently made in the field of defence science, according to the North Korean Central News Agency (KCNA).In March, North Korea conducted similar strategic cruise missile tests from the 5,000-ton warship on two occasions ahead of its commissioning. Pyongyang's designation of the weapons as "strategic" suggests that it may possess nuclear capabilities.