text: Chapter 18
  Deliberate Breach
  18-18. A deliberate breach is the systematically planned and executed creation of a lane through a barrier
  or obstacle (ATP 3-90.4/MCTP 3-34A). Typically, a unit uses a deliberate breach against a strong defense or
  complex obstacle system. It is characterized by the most planning, preparation, and buildup of combat power
  on the near side of obstacles. It is similar to a deliberate attack, requiring detailed knowledge of the defense
  and obstacle systems. Subordinate units are task-organized to accomplish the breach. The breach may require
  securing the far side of the obstacle with an assault force before or during reduction.
  Hasty Breach
  18-19. A hasty breach is the creation of lanes through enemy minefields by expedient methods such as
  blasting with demolitions, pushing rollers or disabled vehicles through the minefields when the time factor
  does not permit detailed reconnaissance, deliberate breaching, or bypassing the obstacle (JP 3-15). A hasty
  breach is an adaptation to the deliberate breach and is conducted when less time is available. It may be
  conducted during a deliberate or hasty attack due to lack of clarity on enemy obstacles or changing enemy
  situations.
  18-20. An in-stride breach is a type of hasty breach used to describe the situation when a subordinate unit
  is expected to be able to organize for a conduct a hasty breach with its organic or task-organized assets,
  without affecting the higher unit scheme of movement and maneuver or commander’s intent. In-stride breach
  is generally not used below the company level since a platoon is unable to form effective support, breach,
  and assault forces with its squads.
  Covert Breach
  18-21. A covert breach is the creation of lanes through minefields or other obstacles that is planned and
  intended to be executed without detection by an adversary. Its primary purpose is to reduce obstacles in an
  undetected fashion to facilitate the passage of maneuver forces. A covert breach is conducted when surprise
  is necessary or desirable and when limited visibility and terrain present the opportunity to reduce enemy
  obstacles without being seen. Through surprise, the commander conceals their capabilities and intentions and
  creates the opportunity to position support and assault forces to strike the enemy while unaware or
  unprepared. The support force does not usually provide suppressive fire until the initiation of the assault or
  in the event that the breach force is detected. Covert breaches are usually conducted during limited visibility.
  It uses elements of deliberate and hasty breaching, as required.
  Breaching Tenets
  18-22. Successful breaching missions are characterized by applying breaching tenets. See table 18-1. These
  tenets are integrated into the planning process. The tenets are—
  * Intelligence.
  * Breaching fundamentals (suppress, obscure, secure, reduce, and assault [SOSRA]).
  * Breaching organization.
  * Mass.
  * Synchronization.
  See ATP 3-90.4/MCTP 3-34A for more information on the breaching tenets.
  Breach Fundamentals
  18-23. Breaching fundamentals are integrated into the planning process and applied when a defended
  obstacle must be reduced. This includes breaching, gap crossing, and route clearance missions. The
  fundamentals are described by the memory aid SOSRA:
  * Suppress.
  * Obscure.
  * Secure.
  * Reduce.