What term is used to describe terrain that must be controlled to ensure mission achievement?

The term that is used to describe terrain that must be controlled to ensure mission achievement is decisive terrain. This refers to specific land features that, when taken or held, provide a significant advantage to the force that controls them. Decisive terrain can influence the outcomes of military operations, as it may enhance the ability to observe, maneuver, or provide tactical advantages over the enemy. Understanding which terrain is decisive helps commanders prioritize their objectives and allocate resources effectively, ensuring that these critical features are secured to facilitate overall mission success.

The concept of decisive terrain emphasizes the importance of terrain in military planning and operations, allowing leaders to make informed decisions that align with their strategic goals. This understanding is essential for successful maneuvering and engagement in combat scenarios, establishing a foundation for subsequent operations.