text: Chapter 1
  MULTI-DOMAIN EXTENDED BATTLEFIELD
  1-62. Army forces conduct operations synchronized across multiple domains to converge the effects
  necessary to succeed during operations short of conflict, as well as during LSCO. Aviation operations are
  inherently multi-domain in nature, and Army Aviation leaders require a thorough understanding of the OE
  to identify opportunities and risks related to their operations. Army Aviation’s ability to project power
  throughout the physical domains (land, air, and maritime), as well as operate in space and cyberspace are
  vital to joint operations.
  PHYSICAL DOMAINS
  1-63. Army Aviation must be able to fight under all conditions and in any of the physical domains (air,
  land, or maritime) as a member of the combined arms team. Understanding and exploiting the unique
  capabilities presented by the physical environment, while mitigating risks and limitations, are essential
  throughout the operations process.
  Expeditionary Operations
  1-64. With regard to Army Aviation, expeditionary operations can be considered those operations that
  require rapid deployment of a task-organized force via land, air, and/or sea into austere and/or immature
  theaters with the requisite mobility, lethality, protection, sustainment, and C2 capability to operate as part
  of the joint, interagency, intergovernmental, and/or multinational team to conduct unified land operations
  against peer competitors in LSCO. Army Aviation forces must be prepared to operate as part of the joint
  force and overcome anti-access and area denial capabilities in order to open a window of relative
  advantage. Specific considerations for expeditionary aviation operations may include—
  * Mission sets. Aviation units must be ready to conduct the full range of decisive action
  operations up to, and including, LSCO against peer or near-peer threats.
  * Duration. Units must be prepared to operate with limited external resupply and sustainment for
  days to weeks while conducting continuous operations.
  * Unit of employment. The lowest echelon of employment is the company/troop, supported by a
  battalion or battalion task force headquarters.
  * Operations timeline. Units must be prepared to conduct operations in support of the joint force
  within 24 to 72 hours of arrival. This time may be adjusted (more or less) based on mission
  variables.
  * Unit movement. Units must be prepared to relocate frequently throughout the conduct of
  operations for survivability and to remain engaged in the fight. Movement frequency is dictated
  by mission variables.
  * Split operations. Units must be prepared to conduct split operations depending on mission
  variables and unit of employment.
  Mountain Operations
  1-65. Capabilities. Army Aviation is ideally suited to conduct combat operations in mountainous terrain.
  Providing the combined arms team with increased mobility, speed, and range, Army Aviation can
  effectively overcome the limitations imposed on traditional ground mounted and dismounted maneuver in
  compartmentalized and complex terrain. Mountains provide visual and audio masking that may limit threat
  acquisition ranges enabling aviation maneuver forces to achieve greater tactical surprise and protection
  from long-range observation and engagements. The use of air assault and air movement operations enable
  the combined arms team to rapidly reposition forces and materials at decisive points to retain greater
  freedom of action over the enemy while achieving economy of force over large expanses of complex
  terrain with limited ground LOCs. The mobility and lethality of attack and reconnaissance helicopters and
  UAS provide ground maneuver forces with precise direct fire and persistent reconnaissance beyond ground
  inter-visibility lines and in broken terrain, reducing enemy freedom of action and the likelihood of enemy
  forces achieving tactical surprise. MEDEVAC capabilities in remote locations with limited or no-road
  infrastructure increase the combined arms team’s survivability and freedom of action. Army Aviation’s