This edition of Joint Publication (JP) 5-0, Joint Operation Planning, reflects the current doctrine for conducting joint, interagency, and multinational planning activities across the full range of military operations. This keystone publication forms the core of joint warfighting doctrine and establishes the framework for our forces' ability to fight as a joint team. This edition of JP 5-0 seeks to arm joint force commanders with processes that allow for that flexibility. I encourage leaders to ensure their organizations understand and use joint doctrine and this manual in particular as you continue to assist our Nation in advancing its enduring interests. This document: Discusses the role of joint operations planning, Explains the adaptive planning and execution (APEX) system, Explains the composition of strategic direction and joint operation planning, Describes operational art, operational design, the design elements, and the relationship to joint operation planning process, Describes joint operation planning process.