text: Fire Support in Depth During Large-Scale Combat Operations
  TRANSITION TO THE OFFENSE
  6-65. A defending commander seeks a window of opportunity to transition to offensive operations by
  anticipating when and where an enemy force will reach its culminating point or require an operational pause
  before it can continue. During these windows, the combat power ratios mostly favor a defending force. An
  enemy force will do everything it can to keep a friendly force from knowing when it is overextended.
  FSCOORDs anticipate the transition to the offense and support their commanders by providing input to the
  overall operation assessment process, and by applying the principles of FS planning and coordination and FS
  execution.
  SECTION IV – THE OFFENSE
  6-66. The main purpose of the offense is to defeat enemy forces, destroy enemy forces, and gain control of
  terrain, resources, and population centers. The offense supports friendly operations in the land, air, maritime,
  space, and cyberspace domains, and in the information environment. The cyberspace domain is the
  interdependent networks of information technology infrastructures and resident data, including the Internet,
  telecommunication networks, computer systems, embedded processors and controllers, and relevant portions
  of the electromagnetic spectrum (FM 3-0). Dislocate is to employ forces to obtain significant positional
  advantage in one or more domains, rendering the enemy’s dispositions less valuable, perhaps even irrelevant
  (FM 3-0). These operations destroy, dislocate, disintegrate, or isolate an enemy force.
  6-67. An offensive operation is an operation to defeat or destroy enemy forces and gain control of terrain,
  resources, and population centers (ADP 3-0). The offense is the decisive form of war. The offense is the
  ultimate means commanders have of imposing their will on enemy forces. Executing offensive operations to
  defeat and destroy enemy forces as well as gain control of terrain, resources, and population centers.
  Offensive operations can also be conducted to deceive or divert an enemy force, develop intelligence, or hold
  an enemy force in position. Commanders seize, retain, and exploit the initiative when conducting the offense.
  Taking the initiative from an enemy force requires the conduct of the offense, even in the defense.
  6-68. The performance of effective offensive operations capitalizes on timely, relevant, accurate, and
  predictive intelligence and other relevant information regarding enemy forces, weather, and terrain.
  Commanders maneuver forces to positions of relative advantage before contact. Contact with enemy forces
  before the main effort is deliberate and designed to shape the optimum situation for the decisive operation.
  Without hesitation, commanders violently execute both movement and fires-within the higher commander's
  intent-to break the enemy's will or destroy the enemy.
  THE ENEMY DEFENSE
  6-69. During offensive operations, the enemy typically attempts to slow and disrupt friendly forces with a
  combination of obstacles, prepared positions, and favorable terrain so that they can be destroyed with massed
  fires. The enemy is likely to defend in depth, and when provided time, will continuously improve positions
  in ways that better protect enemy defending units, make attacks against them more costly, and allow the
  enemy to commit the minimum amount of ground combat power forward. Forward positioned enemy forces
  are heavily focused on providing observed fires for long range systems and slowing friendly forces long
  enough to be engaged effectively by those systems. The enemy is likely to conduct a mobile defense
  whenever capable, using a series of subsequent battle positions to achieve depth.
  6-70. The enemy commander seeks to use fires and obstacles to prevent decisive engagement of the
  defending ground forces as they reposition, while causing friendly forces to move methodically under
  continuous fire without fixing the enemy's own forces. The enemy can employ significant EW, ISR, and
  information-related capabilities as part of this defensive effort. Several potential enemies can employ CBRN
  weapons to include tactical nuclear weapons. The enemy main defense zone is organized in a succession of
  integrated kill zones, obstacles, and battle positions.
  ECHELONMENT OF FIRES
  6-71. Echelonment of fires is a technique for integrating and synchronizing maneuver and fires. Echelonment
  of fires is the execution of a schedule of fires fired from the highest caliber to the lowest caliber weapon,