Japan said Tuesday that China issued no advance warning before radar-locking Japan Air Self-Defense Force jets. The announcement immediately heightened escalation risk concerns during a tense period in regional security affairs. Lawmakers received the update as they opened deliberations on the fiscal 2025 supplementary budget.
Defense Minister Shinjiro Koizumi told the Budget Committee that China claimed to have notified surrounding parties. Japan, however, found no Notice to Airmen or navigation warning related to the exercise. Officials reviewed all channels and confirmed that no communication had reached Japanese authorities, deepening escalation risk concerns.
Koizumi said Japan will address China’s actions with firmness while avoiding unnecessary tension. He explained that the ministry will expand surveillance efforts across key airspace and maritime regions. These measures aim to strengthen detection capabilities and reduce escalation risk concerns in unpredictable environments.
Prime Minister Sanae Takaichi commented on bilateral relations during the same committee session. She said Japan intends to maintain dialogue even while handling significant strategic disagreements with China. Her statement highlighted Tokyo’s dual approach combining diplomatic outreach with strong defense posture.
Economic issues also entered the discussion as Takaichi assessed weakening relations between the two countries. She said Japan is reviewing recent Chinese measures that affect trade and investment flows. Officials plan to evaluate possible impacts and prepare responses that protect domestic industries.
Takaichi additionally noted progress on proposed legislation allowing women to keep maiden names after marriage. She said the change could reduce administrative burdens and improve fairness within daily life. The government plans to coordinate with ruling coalition members as the debate moves forward.
Committee leaders earlier agreed to hold intense deliberations and a final questioning session on Thursday. This schedule allows lawmakers to examine defense policies, diplomatic strategies, and key budget priorities thoroughly. Officials expect extended discussion as national security issues continue gaining urgency.
The radar-lock dispute now adds new pressure to Japan’s regional security planning. Analysts say both governments will likely monitor developments closely as tensions evolve. Officials indicated that updated assessments will follow as surveillance operations continue.

