Pyongyang Fires Warning Shot Over Seoul’s Nuclear Submarine Push
North Korea has condemned South Korea’s initiative to develop nuclear-powered submarines as a step toward nuclear armament. Pyongyang warned through state media on Wednesday of “unparalleled power” to neutralize threats, following Seoul’s push for advanced naval capabilities and nuclear cooperation with Washington.
Challenging Stability and Fuel Constraints
The Korean Central News Agency (KCNA) published a commentary by Jang Kum-chol, North Korea’s first vice minister of foreign ministry, characterizing South Korea’s submarine project as a challenge to regional stability. According to Jang, Seoul’s goal was “to secure the right to produce nuclear materials, free from the restraint of the item on reprocessing nuclear waste fuel and prohibiting uranium enrichment, and ultimately pave the way for making a leap forward to nuclear armament.”
“The possession of the unparalleled power capable of neutralising all sorts of existing or newly-emerging potential threats… will be the most responsible option for deterring a war,” Jang stated in the KCNA commentary reported by Yonhap News Agency. According to the North Korean perspective, joint efforts between Washington and Seoul regarding nuclear submarine development are set to introduce additional instability to the Korean Peninsula, alongside presenting a severe threat to North Korea’s maritime sovereignty and national security.
The Jang Bogo N Timeline and U.S. Talks
South Korea unveiled its nuclear-powered submarine initiative, designated the Jang Bogo N program, in May. The program aims to build its first nuclear-propelled submarines by the mid-2030s, with operational service targeted for the late 2030s.
Having received approval from Washington to proceed with the initiative, the two governments have initiated preliminary discussions aimed at expanding upon the bilateral security pact agreed upon by their respective leaders during an October summit last year. On August 5, South Korean Foreign Minister Cho Hyun outlined the ministry’s strategic objectives during a policy briefing to President Lee Jae Myung. Cho conveyed that the department will coordinate discussions with the U.S. to establish the necessary conditions for constructing nuclear-powered submarines, while also setting the stage for permissions regarding uranium enrichment and spent nuclear fuel reprocessing.
Balancing Diplomacy Amid Military Expansion
Cho noted that the administration will pursue avenues for establishing peaceful coexistence with the North alongside international bodies like the United Nations, while simultaneously cooperating with Washington to restart talks with Pyongyang and revive denuclearization negotiations through a step-by-step framework.

Jang Kum-chol cautioned via a statement covered by the Seoul Economic Daily that South Korea’s pursuit of nuclear-propelled submarines risks triggering an Asia-Pacific arms race, characterizing the undertaking as a major hazard to maritime sovereignty and national security.
Reinforcing Strategic Postures
Pyongyang holds the position that war deterrence is most effectively achieved by retaining an unmatched ability to answer hostile military challenges against the nation’s security and strategic sovereignty with devastating retaliatory attacks that eliminate any possibility of recovery or survival. Both nations continue to reinforce their strategic postures as preliminary talks between Seoul and Washington advance.
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