Narrator: Battlespace includes the area of interest, area of influence, and area of operations. The size of the area of interest can change based on the commander's refined understanding of the situation. The extent of the area of influence may also change if forces are added or deleted, equipment capability and availability change, or the rules of engagement change. Finally, the commander’s area of operations may need to change based on scope of mission, the results of operations, operational reach, or to ensure sufficient battlespace to maneuver and protect his force.