Japan’s 2026 Diplomatic Bluebook, presented by Foreign Minister Toshimitsu Motegi, downgraded its description of China from “the most important bilateral relationship” in 2025 to an “important neighboring country.” The shift reflects a deterioration in China–Japan relations, particularly following remarks by Prime Minister Sanae Takaichi in parliament regarding a potential Taiwan contingency. The report notes that since November, China has intensified unilateral criticism and coercive measures against Japan.
The Bluebook cites examples of China’s coercive actions, including radar illumination of Japanese Self-Defense Force aircraft by Chinese military planes and export controls on dual-use goods to Japan. Despite these tensions, Japan states that it remains open to dialogue and has not closed the door to engagement with China.
The report maintains a positive assessment of relations with South Korea, describing it as an “an important neighboring country with which Japan continues to cooperate as a partner.”
It also highlights key regional security concerns, including rising tensions in the Taiwan Strait, North Korea’s nuclear and missile programs, and expanding military cooperation between Russia and North Korea. Japan emphasizes strengthening cooperation through the U.S.–Japan alliance and with partners such as the G7, Australia, India, and South Korea.
Source: Kyodo News, April 10, 2026
https://china.kyodonews.net/articles/-/9014