China Air-Zone Move Expands Field of Islands Spat With Japan
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China’s declared intent to protect an air zone encompassing islands that are disputed with Japan escalated tensions between Asia’s largest economies, risking damage to a resurgence in trade.
China announced an air defense identification zone in the East China Sea effective Nov. 23 and said its military will take “defensive emergency measures” if aircraft enter the area without reporting flight plans or identifying themselves. Japan lodged a complaint as the U.S. and South Korea expressed concern about China’s actions.