Which of the following is a target indicator of enemy unit activity?

Movement patterns serve as a key target indicator of enemy unit activity because they provide observable evidence of troop engagement, deployment, or repositioning within a given area. By analyzing how enemy units move—whether it is towards a particular location, through certain terrain, or in a specific formation—military personnel can infer intentions and anticipate actions. This insight is crucial for decision-making during operations, as it helps to determine when an enemy might be preparing for an offensive or defensive action, aiding in tactical planning and resource allocation.

In contrast, changes in uniforms or camouflage techniques primarily indicate adjustments to concealment and not necessarily active engagement or unit movement. The increase in friendly units could suggest preparation for operations but does not directly reflect enemy activity. Each of these factors can provide useful intelligence, but movement patterns specifically yield critical insight into the dynamics of enemy operations. This understanding allows commanders to adapt their strategies and ensure readiness in response to enemy maneuvers.