A group of disputed islands, Uotsuri island , Minamikojima and Kitakojima, known as Senkaku in Japan and Diaoyu in China is seen in the East China SeaBy using Phil Stewart and David Alexander WASHINGTON (Reuters) – Two unarmed U.S. B-fifty two bombers on a training mission flew over disputed islands within the East China Sea with out informing Beijing, Pentagon officers mentioned on Tuesday, defying China's assertion of a brand new airspace safeguard zone in the area. The flight on Monday night time didn’t steered a response from China, and the White Home on Tuesday advised Beijing to unravel its dispute with Japan over the islands diplomatically, with out resorting to "threats or inflammatory language." China revealed coordinates for an East China Sea Air Defence Identification Zone over the weekend and warned it could take "protective emergency measures" towards aircraft that failed to determine themselves correctly in the airspace.