What is the definition of an obstacle in the context of military operations?

In military operations, an obstacle is defined as a feature that prevents or delays military movement. This definition is critical because obstacles can significantly influence military strategies, operational planning, and tactics. Understanding what constitutes an obstacle allows military planners to anticipate challenges in movement and logistics, guiding the implementation of effective strategies to either overcome or utilize these obstacles to their advantage.

For example, natural terrain features such as rivers, mountains, or heavily wooded areas can serve as obstacles that hinder the movement of troops and vehicles, requiring careful planning to navigate around them or to set conditions for eventual crossing or breaching. Additionally, man-made obstacles, like minefields or fortifications, are specifically designed to disrupt or delay enemy movement. Recognizing obstacles allows commanders to assess routes, deployments, and the positioning of forces effectively, maintaining operational tempo and aiming to achieve tactical objectives.