1st 3,600-ton naval attack submarine launched
A launch ceremony for a 3,600-ton-class naval submarine, the first of the three Changbogo-III Batch-II class submarines, is held at shipbuilder Hanwha Ocean's dockyard in Geoje, about 330 kilometers southeast of Seoul, on Oct. 22, 2025. Named after iconic Joseon Dynasty (1392-1910) engineer Jang Yeong-sil, the 89-meter-long Batch-II submarine is part of the military's Changbogo-III, or KSS-III, program to acquire advanced diesel-electric attack submarines. (Yonhap)
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