This question asks whether South Korea will announce its withdrawal from the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) before January 1, 2026. The NPT is a multilateral treaty that aims to prevent the spread of nuclear weapons and promote peaceful uses of nuclear energy. South Korea is a non-nuclear-weapon state party to the NPT since 1975, but it has faced increasing security threats from North Korea's nuclear and missile programs. Some analysts have argued that South Korea should develop its own nuclear deterrent or seek a nuclear umbrella from the United States. However, withdrawing from the NPT would have significant diplomatic and economic costs for South Korea, as well as potential security risks from regional and global reactions. The resolution of this question will be based on official statements or actions by the South Korean government or its representatives that indicate a clear intention to leave the NPT.

Recent sentiment and historical polls in South Korea show that public support for acquiring nuclear weapons has been consistently high, ranging between 50 and 70 percent throughout the past decade. The main reasons cited by the public are the need to defend South Korea from threats other than North Korea, such as China, increase the prestige of South Korea to the international community, and counter the growing threat from North Korea. However, public opinion may not fully reflect the trade-offs and consequences of pursuing nuclear weapons, such as losing U.S. security guarantees, facing international sanctions and isolation, and triggering a regional arms race. The United States has been providing security guarantees to South Korea since the end of the Korean War in 1953, including extending its nuclear umbrella to deter North Korea. However, some South Koreans have expressed doubts about the credibility and reliability of U.S. commitments, especially after former President Donald Trump's unconventional approach to alliance management and diplomacy with North Korea. The current Biden administration has reaffirmed its commitment to defend South Korea and maintain a strong alliance, but it has also prioritized denuclearization and diplomacy over military options. A recent BBC article reported that some South Korean lawmakers have been debating whether to build nuclear weapons or seek U.S. redeployment of tactical nuclear weapons on the peninsula, but they have faced opposition from the government and civil society groups.

Sources:
The Evolution of South Korea’s Nuclear Weapons Policy Debate. https://www.cfr.org/blog/evolution-south-koreas-nuclear-weapons-policy-debate.
Thinking Nuclear: South Korean Attitudes on Nuclear Weapons. https://globalaffairs.org/research/public-opinion-survey/thinking-nuclear-south-korean-attitudes-nuclear-weapons.
Elections, Nukes, and the Future of the South Korea–U.S. Alliance. https://carnegieendowment.org/2020/10/26/elections-nukes-and-future-of-south-korea-u.s.-alliance-pub-83044.
More than 70 percent of South Koreans want nuclear weapons to confront .... https://www.washingtonpost.com/world/2022/02/21/south-korea-nuclear-weapons/.
Thinking Nuclear: South Korean Attitudes on Nuclear Weapons. https://globalaffairs.org/sites/default/files/2022-02/Korea%20Nuclear%20Report%20PDF.pdf.