South Korean President Yoon Suk-yeol announced on Wednesday that South Korea and the United States agreed to immediate talks between the leaders of both countries in the event of a nuclear attack by North Korea, pledging a swift and overwhelming response using all military capabilities of the alliance, including U.S. nuclear weapons. In a joint meeting with U.S. President Joe Biden following their summit at the White House, Yoon stated that Seoul and Washington agreed to significantly enhance extended deterrence to achieve peace, relying on absolute power superiority rather than an illusory peace based on the goodwill of the other party. He added that the two countries agreed to establish a nuclear advisory group to specifically operate the new extended deterrence system. Yoon mentioned that both sides will exchange information on nuclear weapons and strategic operation plans in response to North Korean threats, and will hold regular discussions on planning and executing joint operations that combine advanced conventional forces with U.S. nuclear forces, with results to be communicated to the leaders of both countries.