Several media outlets have seen a draft of the 2026 edition of Japan’s “Diplomatic Bluebook,” which indicates a downgrading of Japan’s relationship with Beijing in this diplomatic report, no longer referring to the Japan-China relationship as “one of the most important bilateral relationships.” This move comes amid deteriorating relations between the two countries.
Reuters and Kyodo News, among other media outlets, reported on the contents of this annual diplomatic report. It is expected that the government led by Japanese Prime Minister Sanae Takai will approve the report next month.
The 2026 edition of the “Diplomatic Bluebook” draft has removed the statement from the 2025 edition that positioned the Japan-China relationship as “one of the most important bilateral relationships,” now only describing China as an “important neighbor” while retaining the phrase “strategic reciprocity.”
The draft also lists a series of confrontations with the Chinese Communist Party over the past year, including export restrictions on rare earths, radar lock-ons of Japanese military aircraft, and increased pressure on Taiwan.
The Bluebook states that given the continuous criticisms of Japan by the Chinese Communist Party through the United Nations and other platforms, it has become particularly important for the international community to understand Japan’s position and the accuracy of facts. The draft also emphasizes the necessity of countering Chinese information warfare.
This shift in diplomatic tone highlights the ongoing deterioration of Japan-China bilateral relations since Takai’s remarks on Taiwan last November, with economic frictions and security tensions escalating. Takai stated in parliament back then that any military conflict in the Taiwan Strait could be considered a “threat to Japan’s survival,” implying Japan’s readiness to invoke collective self-defense and intervene militarily in such a situation. This statement angered China, leading to a series of economic retaliatory measures against Japan, including restricting imports of Japanese seafood and key minerals.
The 2026 edition of Japan’s Bluebook draft criticizes China, stating that since Takai’s remarks last November, China has conducted “unilateral criticisms against Japan and intensified pressure measures.”
Last month, while speaking in the Japanese parliament, Takai once again emphasized China’s “coercive” behavior. She also noted that the economic and security threats posed by China, Russia, and North Korea are increasingly severe.
During a routine press conference on Tuesday, Chinese Foreign Ministry spokesperson Lin Jian commented on Japan’s downgrading of the Japan-China relationship in the “Diplomatic Bluebook,” stating that Takai’s Taiwan-related remarks are the root cause of the current situation in Sino-Japanese relations. Lin once again demanded Takai retract those remarks.
“Modern Diplomacy” reported that trade and the supply chain have become the core battleground of China-Japan relations. China’s restrictions on rare earths and key minerals have heightened Japan’s concerns about economic vulnerability.
In response, Japan has begun coordinating with the United States to diversify the supply chain. Last Thursday, during a meeting at the White House with President Trump, Takai and the U.S. announced a joint action plan aimed at finding alternative channels for key mineral and rare earth supply chains to reduce dependence on China.
“Modern Diplomacy” stated that Japan’s adjustment in diplomatic tone in the Bluebook also reflects the country’s broader regional security considerations. Japan increasingly equates China’s behavior with that of Russia and North Korea, warning that the threats and strategic alliances among these countries are intensifying. This stance indicates that Japan is shifting towards a security-driven diplomatic strategy and seeking a balance between economic cooperation and military risks.
The report mentions that the language downgrade regarding Japan-China relations in the Bluebook carries symbolic significance. Official diplomatic language in government documents often implies potential policy directions, and this adjustment indicates that Japan no longer views its relationship with China primarily from a cooperative standpoint. This may further facilitate economic decoupling, especially in sensitive areas such as technology and key minerals, while strengthening Japan’s alliances with Western partners. Japan’s decision reflects a broader shift in how major economies are handling their relationships with China, focusing more on resilience and strategic caution rather than engagement and interdependence.