text: Foundations of Engineer Operations
  Engineer reconnaissance teams may operate independently, but they normally support BCT, cavalry
  squadrons, or scout platoons to classify routes, locate obstacles, and determine how to overcome the effects
  of obstacles by recommending bypass or reduction. Engineer reconnaissance teams also conduct the
  reconnaissance of proposed obstacle placement locations and ensure that obstacles remain integrated with
  the maneuver plan. All terrain, obstacle, and reconnoitered data collected is submitted to geospatial engineers
  for updating the unit COP and for inclusion in the TGD. See ATP 3-34.81 for more information on engineer
  reconnaissance tasks.
  EOCA are combat engineers trained to defeat explosive hazards. They can perform limited
  identification and disposal of unexploded ordnance in support of mobility.
  ENHANCE PROTECTION
  The enhance protection line of engineer support is the combination of the three engineer disciplines to
  support the preservation of the force so that the commander can apply maximum combat power. This line of
  engineer support consists largely of survivability operations, but it can also include selected mobility tasks
  (such as the construction of perimeter roads), countermobility tasks (such as the emplacement of protective
  obstacles), and explosive-hazards operations tasks. It also includes survivability and other protection tasks
  performed or supported by engineers. See ADP 3-37 and ATP 3-37.34 for additional information.
  Support to Survivability
  Engineer support to survivability consists of the following areas:
  * Fighting positions.
  * Protective positions.
  * Hardened facilities.
  * Camouflage and concealment.
  Survivability operations—those military activities that alter the physical environment to provide or
  improve cover, concealment, and camouflage—are used to enhance survivability when existing terrain
  features offer insufficient cover and concealment. This is one of the tasks under the protection warfighting
  function found in ADP 3-37. Engineers employ capabilities from the three engineer disciplines to support
  survivability operations. Engineer support to survivability operations is most often aligned with the enhance
  protection line of engineer support.
  Although units conduct survivability operations within capability limits, engineers have a broad range
  of diverse capabilities that can enhance survivability. Engineer tasks in support of survivability operations
  include tasks to build, repair, or maintain fighting and protective positions and to harden, conceal, or
  camouflage roads, bridges, airfields, and other structures and facilities. These tasks tend to be equipment-
  intensive and may require the use of equipment timelines to optimize the use of low-density, critical
  equipment.
  Engineer tasks that support survivability operations occur predominately at the operational and tactical
  levels of war. At the tactical level of war, they often occur in support to maneuver and special operations
  forces that are in close combat, which require combat engineer units. This often occurs for tasks to build,
  repair, or maintain fighting and protective positions. Those tasks are often considered combat engineering
  tasks, even though general engineer units can perform them when the conditions allow. At the operational
  level, engineer tasks that support survivability operations are typically performed by general engineer units.
  In the offense and defense, they are focused on the protection of friendly forces, but during the conduct of
  stability and DSCA, they sometimes focus on the protection of the population or civilian assets.
  See ATP 3-37.34 for additional information about survivability operations.
  Engineers enhance the survivability of forces, in part, by maintaining the tempo of the offense.
  Engineer mobility efforts and counter-obstacle operations assist in synchronizing the offense by preventing
  a loss of momentum or an incomplete commitment of forces. Engineer digging assets provide survivability
  to key systems or units during operational halts or when transitioning to the defense. Because they have
  distinct appearances and uses, engineer assets can assist in deception operations. For example, moving bridge
  trucks to various river-crossing sites can deceive the enemy about the actual crossing location. The ability to