Distributed simulation is a powerful tool for force generation that must be tailored to the force it intends to serve. To develop this complex capability a Concept of Operation (ConOp) is necessary to provide consistent direction, unity of effort, and alignment with existing policy. The document must address issues such as the goals for distributed training simulation, describe the governance structure, identify users, enumerate common services, and guide implementation. This paper describes factors shaping the treatment of these issues in a ConOp for a small multi-purpose, combat capable Air Force. The Canadian Air Force's Synthetic Environment Coordination Office is leading an effort involving Air Force operational communities, Army, Navy, and joint projects to develop a ConOp for Air Force distributed training simulation. Given the size, missions, and history of the Canadian Air Force, the approaches to interoperability with allied simulation networks and integration with Army and Navy emerge as pivotal issues to establishing an effective distributed simulation capability. Furthermore, leveraging the expertise of other organizations and isolation of the ConOp's technical specifications are strategies for keeping the ConOp current and coordinated with wider organizational developments. In highlighting how national circumstances influence the formulation of a distributed training simulation ConOp for Canada's Air Force, we seek to assist readers from other nations in considering similar decisions from their perspectives, which may lead to different solutions which address their own circumstances.