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A turtle ship, "geobukseon" in Korean, is opened to the public at a naval base in Changwon, 400 kilometers south of Seoul, on Dec. 6, 2022. The Navy restored the warship after four years of work by referring to a ship designed by legendary Korean naval chief Adm. Yi Sun-shin to fight off invading Japanese forces in the early 15th century. (Yonhap)