Japan has reportedly proposed a new “one-theater” concept to the U.S., aiming to unify security strategy across the entire Indo-Pacific with a sharper focus on China. But this new approach raises concerns that the allies could take their eye off another challenge — North Korea.

The unconfirmed proposal, reported by Japanese newspaper The Asahi Shimbun last week, appears to align with President Donald Trump’s overt emphasis on the need to counter Beijing’s influence above all other adversaries, and also reflects Tokyo’s own concerns about Chinese activities.