ROKS Choe Museon
At the end of the 1980s the South Korean navy started to improve its overall capability and began to operate more advanced vessels.[1] The first order placed late in 1987 covered three boats, one to be completed in Germany and the other two in South Korea from German-supplied kits.The older boats were upgraded, it is believed that the modernization included a hull stretch to the Type 1400 length, provision for tube-launched Harpoon missiles and the addition of a towed-array sonar.The Republic of Singapore Navy played host to navies from Japan, Republic of Korea and the United States in Exercise Pacific Reach 2000, which was the first multilateral submarine rescue exercise held in the Western Pacific region.ROKS Choe Museon was chosen to represent South Korea in the exercise and she arrived on October 2, 2000.