Overview
- Japan's 2026 Diplomatic Bluebook, released Friday, reclassifies China from one of its most important relationships to an important neighbor.
- The wording reflects strains after Prime Minister Sanae Takaichi said in November that a Chinese attack on Taiwan could trigger a Self-Defense Forces response.
- The report says China stepped up unilateral criticism and coercive measures, citing radar illumination of SDF aircraft and export curbs on dual-use items.
- Despite the downgrade, Tokyo says it remains open to dialogue with Beijing.
- The Bluebook sets a wider context by listing North Korea's weapons programs and growing Russia–North Korea cooperation as threats and by restating Japan's free and open Indo-Pacific goal, alongside concerns about energy security linked to the U.S.-Israel-Iran conflict.