All Domain Operations (ADO) is the evolution of the joint concept of the United States military that addresses strategic adversaries who look to leverage the emerging character of warfare to disrupt and overcome American efforts upon an increasingly complex and global battlefield. ADO as a concept is important because it at once recognizes the complexity of the operational environment and how adversaries intend to achieve strategic advantage within it. The concept describes how the US Army can enable the Joint Force and prevent, deny, and exploit adversaries while consolidating gains. Continued development of the ADO concept is crucial as the operational environment emerges and the US Army seeks to gain and maintain enduring advantages into the future. Wargaming continues to serve as an essential function and tool for military organizations. Wargames simulate processes and consequences based off players' decisions with varying degrees of reality and abstraction. Wargame theory is critical to leader development and the US Army because it supplies a process from which critical decision-making is reduced through abstract mechanics into an iterative process that enables the exploration of failure and rewards learning to make more appropriate decisions. Wargaming is a crucial element towards testing the concepts of ADO as well as training and educating leaders into the future. Key to ADO is developing the capacity to understanding the concept and the operational environment. Wargaming ADO allows leaders and military theorists to learn and explore the operational environment including adversary versus US and allied capabilities across operational context. Designing a wargame regarding the operational concept of ADO creates a framework within which leaders can practice planning, execution, and reflect upon the key elements. This monograph proposes a proof of concept Theatrum Belli for future leader development through education and training that focuses on the Army's operational approach to ADO planning and execution.

Approved for public release; distribution is unlimited. The opinions and conclusions expressed herein are those of the student-authors and do not necessarily represent the views of the U.S. Army Command and General Staff College or any other governmental agency. (References to these studies should include the foregoing statement.)