Japanese Prime Minister Sanae Takaichi has sparked a diplomatic dispute with China after suggesting that a hypothetical Chinese attack on Taiwan could trigger a military response from Tokyo. Her comments, made during a parliamentary discussion on “survival-threatening situations” under Japan’s 2015 security law, marked a departure from Tokyo’s usual strategic ambiguity on Taiwan. Takaichi cited a scenario in which Beijing attempted to fully control Taiwan using military force, and noted that an attack on U.S. warships sent to break a blockade could require Japan to intervene.

The remarks prompted a strong reaction from Beijing, including a threatening social media post from China’s Consul General in Osaka and a formal protest, accusing Japan of interfering in internal affairs. Tokyo condemned the diplomat’s comments and reiterated its commitment to the 1972 agreement recognizing the People’s Republic of China as the sole legitimate government. Japan’s Chief Cabinet Secretary emphasized that Taiwan issues should be resolved peacefully, while Takaichi clarified that her statements were hypothetical and indicated she would refrain from making further such comments publicly.