South Korea and the United States share the view that Seoul’s planned nuclear-powered submarines would be an important capability for the alliance and for defense of the Korean Peninsula, a South Korean foreign ministry official says. The officials made the remarks after inaugural bilateral talks on nuclear cooperation in Seoul last week, where the two sides discussed South Korea’s envisioned submarine program. South Korea’s goal is to build conventionally armed nuclear submarines as part of arrangements agreed in a summit between President Lee Jae Myung and U.S. President Donald Trump in October. According to the foreign ministry official, South Korea presents detailed development plans, including a basic development blueprint, and explains that the submarines would be built using South Korea’s own technology. The U.S. side acknowledges that understanding during the consultations. The ministry also says the U.S. delegation does not link the submarine discussions to the transfer of wartime operational control (OPCON), which is another key issue in the allies’ broader security agenda. The talks were held as follow-up to kickoff meetings in Seoul on June 2 and 3, aimed at implementing security and economic commitments described in a joint fact sheet released in November 2025.