South Korean Defense Ministry spokesman Kim Min-suk speaks during a press conference in Seoul, South Korea, May 18, 2013. The Democratic People's Republic of Korea (DPRK) on Saturday launched three short-range guided missiles into the Sea of Japan, Yonhap News Agency reported, citing South Korea's defense ministry. (Xinhua/NEWSIS)

South Korean Defense Ministry spokesman Kim Min-suk speaks during a press conference in Seoul, South Korea, May 18, 2013. The Democratic People's Republic of Korea (DPRK) on Saturday launched three short-range guided missiles into the Sea of Japan, Yonhap News Agency reported, citing South Korea's defense ministry. (Xinhua/NEWSIS)