What does blue represent on a military map?

On a military map, the color blue specifically represents water features such as rivers, lakes, and oceans. This color coding helps map readers quickly identify bodies of water and understand their geographic locations relative to other features. For example, in navigation, recognizing where water sources are located can be crucial for strategic planning, troop movement, and logistics. Understanding color representations on maps is essential for effective interpretation, as it allows users to visually differentiate between various types of terrain and natural features. This enables better situational awareness in military operations.