The Rand Strategy Assessment Center's (RSAC) automated wargaming system includes computer programs that act as agents for Red (Soviet Union) and Blue (United States). Both Red and Blue Agent programs consist of hierarchical levels of rule-based models ranging from the highest national political-military command level to individual theater command levels. The levels below the national command level are collectively referred to as the military command levels. Military command level models are rule-based systems, consisting largely of statements written as human-readable rules that are also executable as computer programs. The rules express knowledge about military command operations. This paper describes the knowledge engineering as RSAC develops the military command level models, and includes a detailed description of the design process and the resultant structure, and a discussion of the process of developing program content.