South Korea's nuclear submarine gamble raises prospect of underwater arms race in Asia

FILE PHOTO: Crew members of South Korean Navy's Shin Chae-ho, KSS-III Dosan Ahn Changho class submarine, salute during a fleet review to mark the 80th anniversary of the Navy's founding, in the waters off Busan, South Korea, September 26, 2025. REUTERS/Kim Hong-Ji/File Photo