Allied Joint Publication (AJP)-6 is a ??keystone?? publication directly subordinate to AJP-01@ Allied Joint Doctrine. It provides the overarching doctrinal guidance to integrate communication and information systems (CIS) into Allied joint operations across the range of Allied operations and missions. It describes the characteristics of CIS@ the overall structure of CIS@ roles and responsibilities for CIS@ command and control of CIS@ and CIS security (to include cyber defence). It further provides a joint force commander (JFC) with the guidance and information necessary to establish effective CIS in@ and for@ an Allied joint force. Purpose. This publication has been prepared under the direction of the NATO Standardization Office/Military Committee Joint Standardization Board. It sets forth joint doctrine to govern the activities and performance of NATO forces in operations and provides the doctrinal basis for coordination among NATO@ NATO nations@ and non- NATO entities. It provides military guidance for the exercise of authority by JFCs and prescribes joint doctrine for operations and training. It is not the intent of this publication to restrict the authority of the JFC from organizing the force and executing the mission in a manner the JFC deems most appropriate to ensure unity of effort in the accomplishment of the overall objective.