The Joint Operating Environment 2035 JOE 2035 is designed to encourage the purposeful preparation of the Joint Force to effectively protect the United States, its interests, and its allies in 2035. For the Joint Force, thinking through the most important conditions in a changing world can mean the difference between victory and defeat, success and failure, and the needless expenditure of human lives and national treasure versus the judicious and prudent application of both to defend our vital interests.This document describes the future security environment and projects the implications of change for the Joint Force so it can anticipate and prepare for potential conflicts. To do this, Section 1 describes the circumstances that are likely to alter the security environment. Next, Section 2 explores how the intersection and interaction of these changes might impact the character of war in the future. Finally, Section 3 provides a framework to think about the full range of Joint Force missions and how they may evolve over time.JOE 2035 illustrates several ideas about how changes to conflict and war might impact the capabilities and operational approaches required by the future Joint Force. These observations includeThe future security environment will be defined by twin overarching challenges. A range of competitors will confront the United States and its global partners and interests. Contested norms will feature adversaries that credibly challenge the rules and agreements that define the international order. Persistent disorder will involve certain adversaries exploiting the inability of societies to provide functioning, stable, and legitimate governance. Confrontations involving contested norms and persistent disorder are likely to be violent, but also include a degree of competition with a military dimension short of traditional armed conflict.