In Summer 2018, the Republic of Korea Navy (ROKN) conducted five flight tests of the Standard Missile-2 (SM-2) interceptor, according to a Raytheon news release. In the first exercise, ROKN fired two SM-2 Block IIIA missiles, testing its semi-active radar seeker technology. Then, in a second exercise, ROKN test fired three SM-2 Block IIIB to successfully intercept three aerial targets. These tests follow Raytheon’s 2017 restart of the SM-2 missile line, in order to fulfill demands from several countries, including South Korea, Japan, and Australia. The SM-2 Block IIIA and IIIB have ranges of about 160 km and are designed to engage lower altitude targets.