2013年，中国单方面宣布建立一个覆盖东海有争议的尖阁列岛/钓鱼岛的防空识别区 — — 此举恶化了与日方的紧张关系。
In 2013, China unilaterally declared an Air Defense Identification Zone covering the East China Sea’s disputed Senkaku/Diaoyu Islands – a move that exacerbated tensions with Japan.