S. Korea's domestically designed and built 3,000-ton Dosan Ahn Chang-ho submarine has successfully crossed the Pacific Ocean, the longest voyage. South Korean submarine Dosan Ahn Chang-ho completes historic 14,000-km Pacific crossing
S. Korea's domestically designed and built 3,000-ton Dosan Ahn Chang-ho submarine has successfully crossed the Pacific Ocean, the longest voyage. 
5 months ago
53
English (US) ·