text: Defense
  Figure 7-15. Counterattack
  7-173. In a successful defense,the enemy’s attack is defeated,and the defensive plan must address missions
  following successful operations. The division’s follow-on missions for the BCT governsthis plan. The staff
  must begin planning for future offensive operations as they develop defensive plans. The commander and
  staff must develop maneuver plans,control measures,obstacle restrictions,and sustainment plans that enable
  the BCT to quickly transition to follow-on offensive missions or to pass follow-on forces.
  MOBILE DEFENSE
  7-174. Themobile defenseis a type of defensive operationthat concentrates on the destruction or defeat of
  the enemy through a decisive attack by a striking force (ADP 3-90). The mobile defense focuses on defeating
  or destroying the enemy by allowing enemy forces to advance to a position that exposes them to a decisive
  counterattack by the striking force—a dedicated counterattack force in a mobile defense constituted with the
  bulk of available combat power (ADP 3-90). The commander uses the fixing force—a force designated to
  supplement the striking force by preventing the enemy from moving from a specific area for a specific time
  (ADP 3-90)—to help channel attacking enemy forces into EAs and to retain areas from which to launch the
  striking force. (See figure 7-16on page 7-48.) A mobile defense requires an area of operations of considerable
  depth. The commander must be able to shape the battlefield,causing an enemy force to overextend its lines
  of communication,expose its flanks,and risk its combat power. Likewise,the commander must be able to
  move friendly forces around and behind the enemy force,cut them off,and destroy them. (See figure 7-17