text: ________________________________________________________________________________Chapter 10
  supporting units transitioning to adaptive operations may be blowing up
  bridges to preserve friendly forces. Engineers supporting joint, combined
  arms, interagency, and/or multinational units transitioning to regional
  operations may be laying minefields to fix an extraregional foe while other
  engineers are providing mobility and survivability support to units launching
  offensive operations against a regional foe. Therefore, some engineers in
  transition operations may be involved in those tasks normally associated
  with regional operations while other engineers units may be involved in tasks
  normally associated with adaptive operations.
  10-62. Several engineer missions become more critical during transition
  operations when shifting to adaptive operations. For example, IW takes on a
  more significant role with use of C3D measures to protect forces while they
  are attempting to get into sanctuary and begin adaptive operations. Engineer
  reconnaissance must locate clear, and preferably concealed, routes to expedite
  units’ movement to sanctuary and limit their exposure to extraregional forces.
  10-63. The State may have done some advance preparation of defensive
  positions in peacetime or during regional operations. However, the OPFOR
  takes advantage of any time required for the extraregional enemy to build up
  combat power, using that time for additional engineer preparation involving
  all means available. Engineer units or other forces supervised by engineers
  provide fortified positions or repair or reinforce those positions already in
  place. Caches and water sources, if not in place, will have to be prepared.
  ADAPTIVE OPERATIONS
  10-64. During adaptive operations, several trends in engineer employment
  may be at odds with one another. On the one hand, the dispersal of forces
  may require task organization of engineer units into smaller groupings. With
  dispersal and decentralization, however, the task organization of operational-
  level engineer assets to support tactical-level missions becomes increasingly
  difficult. As the OPFOR goes into a force-preservation mode, commanders
  may tend to create larger engineer reserves and put into protected storage
  some scarce engineer assets that will be critical to success in later operations.
  Examples of such high-value assets could be bridging, route-clearing equip-
  ment, mechanical minelayers, and other heavy engineer equipment. The
  process begins during transition operations but has the largest impact during
  adaptive operations. This equipment will be protected and might only be used
  for high-priority missions or in areas shielded from the enemy. The shortage
  of key equipment is further intensified by any combat losses.
  10-65. Since requirements for engineer support do not change during the
  absence of heavy equipment, the OPFOR has planned the complete integra-
  tion of civilian and military engineer resources to help compensate for this
  loss. The lack of engineer units and assets available to the lower levels is
  compensated for by the sharing of engineer tasks and responsibilities
  throughout the OPFOR branches and maximizing the use of manual labor
  (military and civilian) and assets other than those of engineer units. Since
  maneuver units or civilian workers may have to perform the majority of engineer
  tasks, engineers are also responsible for supervising and providing guidance and
  technical expertise to these groups. This allows the tasks to be performed with
  the least amount of engineers and mitigates the loss of units and equipment.