https://cdnph.upi.com/ph/st/th/4971781052674/2026/upi_com/3d5ed2a00787a68ee2e16b02f8287c1c/v1.5/South-Korea-US-align-on-nuclear-powered-subs.jpg" /> S. Korea says Seoul and Washington share the view that domestically built nuclear-powered submarines would strengthen alliance defense capabilities.