防空識別圏
The Park-Xi summit in 2013 showed promise of warming relations, but this quickly chilled after China extended their Air Defense Identification Zone (East China Sea) over South Korean territory. Despite this, in July 2014, Xi visited South Korea before its traditional ally North Korea, and in their talks, both leaders affirmed their support for a nuclear-free Korean peninsula and the ongoing free trade agreement negotiations. Both leaders also expressed their concerns over Japanese Prime Minister Shinzō Abe's reinterpretation of Article 9 of the Japanese Constitution.