2-15. Isolate means to separate a force from its sources of support in order to reduce its effectiveness and increase its vulnerability to defeat. Isolation can encompass multiple domains and can have both physical and psychological effects detrimental to accomplishing a mission. Isolating a force in the electromagnetic spectrum exacerbates the effects of physical isolation by reducing its situational awareness. The ability of an isolated unit to perform its intended mission generally degrades over time, decreasing its ability to interfere with an opposing force’s course of action. When commanders isolate, they deny an enemy or adversary access to capabilities that enable an enemy unit to maneuver at will in time and space.