This revised edition of Joint Publication 3-0, Joint Operations, reflects the current guidance for conducting joint activities across the range of military operations and is the basis for U.S. participation in multinational operations where the United States has not ratified specific doctrine or procedures. This keystone publication forms the core of joint warfighting doctrine and establishes the framework for our forces' ability to fight as a joint team. Often called the "linchpin" of the joint doctrine publication hierarchy, the overarching constructs and principles contained in this publication provide a common perspective from which to plan and execute joint operations independently or in cooperation with our multinational partners, other U.S. Government departments and agencies, and intergovernmental and nongovernmental organizations. As our Nation continues into the 21st century, the guidance in this publication will enable current and future leaders of the Armed Forces of the United States to design, plan, organize, train for, and execute worldwide missions as our forces transform to meet emerging challenges. To succeed, we need adaptive and thinking professionals who understand the capabilities their Service brings to joint operations; how to integrate those capabilities with those of the other Services and interorganizational partners to optimize the strength of unified action; and how to organize, employ, and sustain joint forces to provide national leaders with multiple options for addressing various security threats. Above all, we need professionals imbued with a sense of commitment and honor who will act decisively in the absence of specific guidance.