This revised edition of Joint Publication 4-0, Joint Logistics, is the keystone document of the joint logistics series and provides the doctrinal framework which describes how logistics is delivered to support joint operations across the range of military operations. Joint logistics enables all joint operations and represents a significant portion of our total efforts and resources. The overarching ideas and principles contained in this publication provide a common perspective from which to plan, execute and control joint logistics operations in cooperation with our multinational partners and other United States Government agencies. Recent operations have placed unprecedented requirements on joint logisticians operating in the most difficult environments. While support to the joint force has been nothing short of exceptional, the future operating environment will likely present joint logisticians with an increasingly complex set of challenges. The United States will face diverse challenges in an operating environment that will be more complex, more interconnected, more dynamic, and likely more volatile than ever before. Historically, the United States has derived its military superiority from a remarkable ability to translate technological innovation, industrial capacity and a robust logistical architecture into effective battlefield advantages. Our support to the warfighter has been displayed on battlefields across the globe for decades, and has been studied by our friends and potential adversaries alike. This exceptional logistical capability represents a potent force multiplier for our Nation. The current and future environments present tremendous challenges for the joint force logistician. We have made great progress in recent years, but we must continue to develop joint logistics doctrine to optimize joint military, interagency and multinational capabilities. While the operating environment constantly changes, the outcome the joint force commander expects will not. The joint force commander expects joint logistics to give him sustained logistic readiness which will provide freedom of action to effectively execute operations in support of national objectives.