text: Movement and Forms of Maneuver
  * Limits of advance.
  * Directions of attack or axes of advance for every maneuver unit.
  Planning a Frontal Attack
  2-31. It is seldom possible for a unit to exert sufficient pressure to overwhelm an enemy force using a frontal
  attack, since it strikes the enemy force along a significant portion of the enemy’s front. There are many
  considerations for a force to execute a frontal attack. These considerations can include—
  * A friendly force tasked to fix the enemy force in place.
  * Terrain that dictates the unit cannot execute another form of maneuver.
  * Friendly forces have overwhelming combat power to quickly finish the enemy in position.
  2-32. A unit’s planning efforts should reflect these considerations. When considering employing a frontal
  attack as a shaping operation, units also consider other means for fixing the enemy force in position, such as
  feints or demonstrations, and employing indirect fires to mitigate risk.
  Executing a Frontal Attack
  2-33. Units conducting frontal attack advance on a broad front, normally with their subordinate ground
  maneuver elements abreast (except for the reserve). The security force clears enemy reconnaissance,
  surveillance, and target acquisition assets while the main body advances. An attacking force seeks to fix
  enemy forces and gain positional advantage to destroy them using maneuver.
  2-34. If an attacking unit discovers a gap in the enemy force’s defenses, friendly units seek to exploit that
  weakness and disrupt the integrity of the enemy force’s defense. Units assess the situation to ensure that
  enemy forces are not luring them into an engagement area. Units synchronize the exploitation to prevent
  counterattacking enemy forces from isolating and destroying successful subordinate elements of the attacking
  friendly force.
  2-35. When units conducting a frontal attack can no longer advance, they transition to a defensive posture.
  Once set in the defense, they continue to perform reconnaissance of enemy positions to locate gaps or
  assailable flanks and may assist the forward passage of lines of follow-on forces.
  PENETRATION
  2-36. A penetration is a form of maneuver in which a force attacks on a narrow front. Destroying the
  continuity of a defense enables the enemy force’s subsequent isolation and defeat in detail. The penetration
  extends from the enemy force’s disruption zone through the battle zone into the enemy support zone. Units
  employ a penetration when—
  * Weak spots are identified in enemy defenses through reconnaissance, surveillance, and security
  operations.
  * Conditions do not permit an envelopment, such as the enemy having no assailable flank.
  Organization of Forces
  2-37. Penetrating a defensive position requires overwhelming combat power at the point of penetration and
  combat superiority to continue the momentum of the attack. Units allocate combat power and designate
  control measures to fix enemy reserves and long-range weapons in their current locations and to isolate
  enemy forces within the area selected for penetration. Penetrations organize into a breach force, support
  force, assault force, and a reserve. These elements exist for each location the force is required to penetrate.
  Units should not withhold combat power from the initial penetration to conduct additional penetrations unless
  there is sufficient combat power to ensure the success of the initial penetration.
  Breach Force
  2-38. The breach force is responsible for executing the initial penetration of the enemy’s defense. The breach
  force. The breach force is typically the main effort until the breach is complete. Depending on the situation
  the breach force may also be responsible for widening the gaps of the initial penetration.