Seoul and Tokyo defy Chinese defense zoneTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoAssuncao11/28/2013November 28, 2013Japan and South Korea say they have sent surveillance aircraft into China's controversial new air-defense zone in the East China Sea, which includes disputed islands claimed by both Japan and China.https://p.dw.com/p/1AQE5Advertisement