THREE CHINESE COAST GUARD
VESSELS ENTER JAPANESE WATERS
This is a dangerous game the Chinese have undertaken. Not only are Japan and the U.S. linked by a defense treaty but the treaty specifically recognizes the Senkaku as Japanese territory and defines the islands as territory of Japan that the U.S. is obligated to defend. Japan has had internationally recognized sovereignty over the islands since 1895. Prior to that time these uninhabited islands were "undiscovered", or at least not claimed by any other sovereign .