Japanese Prime Minister Shigeru Ishiba has expressed Japan's intention to play a role in providing security guarantees to Ukraine amid ongoing peace talks with Russia aimed at ending the conflict. Ishiba emphasized that Japan will carefully consider legal and capability aspects before fulfilling an appropriate role in the coalition of nations offering these guarantees. This position aligns Japan more closely with NATO's approach to Ukraine's security. The security guarantees are intended to prevent further Russian aggression against Ukraine. Additionally, Japan is reevaluating its longstanding non-nuclear policy, originally established in 1967, with closed-door discussions underway between Tokyo and Washington exploring ways Japan can support U.S. nuclear operations, including surveillance, counter-strike missile deployment, and emergency coordination. This shift has been influenced by former U.S. President Donald Trump's stringent stance on U.S. allies, prompting concerns in Japan and South Korea about the reliability of U.S. security guarantees and accelerating Japan's willingness to reconsider its nuclear posture.