Air Force fighter squadrons at Okinawa's Kadena Air Base and at Misawa on Japan's main island are available for use well away from Japan.

驻守在冲绳嘉手纳空军基地和日本本岛三泽基地的空军战机中队全都可以在远离日本以外的地域投入战斗。

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That is anathema to the Americans, who fear that any talk of time limits at Nago could trigger demands for similar deadlines at the Misawa and Yokota air bases and the Yokosuka naval station in mainland Japan.

ECONOMIST: How the Americans got their base