The author evaluates a Distributed Interactive Simulation (DIS) system known as LeatherNet to determine its abilities in fulfilling the long term Modeling and Simulation (M&S) goals of the United States Marine Corps. LeatherNet is a DIS compatible, virtual simulation system that is being developed to demonstrate the capabilities of today's simulation technology for military applications. The author developed an evaluation methodolgy that evaluates LeatherNet's ability to enhance traditional Marine Corps training. An evaluation was conducted by subject matter experts at the Marine Corps Air...