The U.S. and Japan sign a new security agreement in 2015 which removes a geographical constraint on Japan participating in joint action with the U.S. in protecting vital global interests. The agreement is called the Joint Defense Guidelines. The agreement will enable Japan's Defense Forces with the permission of its parliament to participate in such action. Earlier agreements limited action to the defense of Japanese territories. A new alliance coordination mechanism will be established with officials from diplomatic, defense and military departments of the two countries. Consultations between the U.S. and Japan will take place through this mechanism in peacetime and in emergency situations. The new guidelines also include joint development of weapons systems and sharing of military technology, and cooperation on cybersecurity, missile defense, reconaissance activity. Japan's reinterpretation of its Constitution will now be discussed in parliament in the context of this agreement, to clarify what other activities Japan can take on....