 This includes enemy and friendly armed forces, infrastructure, weather, terrain, and the electromagnetic spectrum within the operational areas and areas of interest.Over the last 25 years, the understanding of the military operational environment has transformed from primarily a time and space-driven linear understanding (a "battlefield") to a multi-dimensional system of systems understanding (a battlespace).This system of systems understanding implies that managing the battlespace has become more complex, primarily because of the increased importance of the cognitive domain, a direct result of the information age.