What type of engagement occurs when forces encounter an enemy that is withdrawing?

A pursuit engagement occurs when forces move to engage an enemy that is in the process of withdrawing. This type of engagement is characterized by the objective of closing in on and disrupting the enemy's retreat, often with the intent to exploit their disadvantage and prevent them from regrouping or reestablishing a defensive position. Through a pursuit, the attacking forces aim to maintain contact with the enemy and capitalize on the momentum gained during the withdrawal phase.

In contrast, a holding action refers to a defensive posture taken by forces to stabilize their position against an assault. A withdrawal action is initiated by a force that is strategically disengaging from combat, which is not the same as pursuing an enemy. Defensive action involves taking measures to protect and hold ground against an attack, rather than actively chasing a retreating enemy. Thus, the nature of a pursuit engagement aligns directly with the dynamics of an enemy withdrawal, making it the correct choice.