What does the term "retrograde" refer to in defensive phases?

The term "retrograde" in defensive phases refers specifically to a withdrawal or retreat from combat space. This action is often necessary when forces are in a position where they can no longer effectively hold their ground due to enemy pressure, unfavorable terrain, or other tactical considerations.

The purpose of a retrograde movement can include regrouping for a stronger defensive position, conserving forces, or maintaining the ability to fight another day rather than facing potential encirclement or destruction. It allows units to disengage while still maintaining organization, often with the intent to reestablish a defensive posture elsewhere.

By understanding this concept within the framework of military operations, troops can execute retrograde movements strategically to maximize their combat effectiveness even while retreating.