Define the principles of speed, distance, and interval in movement planning.

• A. Speed sets tempo; distance is the space between units to reduce exposure; interval maintains maneuver safety and allows reaction time.
• B. Speed and distance are interchangeable; interval is irrelevant.
• C. Distance refers to distance to the enemy; interval is the time between fires.
• D. Speed determines armor; distance is how far you are from the base.

Answer: (A)

Understanding how speed, distance, and interval guide movement planning helps balance tempo, exposure, and safety. Speed sets tempo because how fast you move drives the pace of the operation and shapes your overall plan. Choosing a speed determines how quickly you reach an objective, how much time you’re exposed to threats, and how responsive you can be to changing conditions. Distance describes the space between units in a formation. Proper spacing reduces the risk of multiple casualties from a single event, limits the chance of target overlap, and helps maintain sectors of fire and control in contested terrain. Interval refers to the space or time between elements of the formation, which preserves maneuver safety and ensures crew and unit leaders have room to react to unexpected obstacles, delays, or contact without collapsing the entire maneuver.

The other options mix up these concepts: speed and distance aren’t interchangeable, and interval isn’t irrelevant; distance isn’t about distance to the enemy, and interval isn’t the time between fires.