text: Armies, Corps, and Divisions
  1-125. Today’s OE requires Army forces to continuously evaluate and adapt their operations to ensure they
  are appropriate. The Army’s conduct of modern operations reveals insights especially relevant for armies,
  corps, and divisions:
  * The Army operates as part of a joint force and, when necessary, a multinational coalition. This
  requires an understanding of joint concepts and multinational considerations to be successful.
  * All major operations combine offensive, defensive, and stability operations and tasks executed
  simultaneously at multiple echelons.
  * An OE evolves over time due to military operations. It also evolves because of outside variables
  and interactions.
  * Operations conducted during one phase of a campaign or major operation directly affect
  subsequent operations and phases. Commanders should conduct current operations in a manner
  that sets the conditions necessary for future operations and ultimately the de-escalation from armed
  conflict to a lower level on the competition continuum.
  * Major operations are conducted not only to defeat an adversary or enemy but also to create the
  conditions for the long-term consolidation of gains. The military plays a large role in this effort,
  even after major combat operations have ended. However, long-term success is not possible
  without the other instruments of national power and a whole-of-nation approach.
  * In any campaign or major operation, changing conditions require Army forces to adapt their
  tactics, techniques, and procedures to the operational environment. Successfully navigating these
  transitions requires collaboration between learning organizations. Commanders need to constantly
  assess the situation and desired objectives to ensure they are still desirable.
  * Regardless of how long operations are expected to last, commanders should consider transitions
  and begin planning early for them. Failure to adequately plan for transitions may result in conflict
  mutation as defeated enemy forces transition to different forms of resistance, protracting the
  conflict, and changing the nature of operations.