On a military map, what does the color blue represent?

On a military map, the color blue represents water. This includes lakes, rivers, streams, and other bodies of water. The use of blue to denote water is a standard convention in cartography, making it easily identifiable for those navigating or analyzing maps. Understanding the representation of blue is crucial for operational planning and navigation in a military context, where recognizing water features can impact the movement of troops and equipment, as well as influence strategies related to logistics and combat operations. Other colors on the map represent different features, such as green for vegetation or brown for terrain and relief, but blue specifically signals the presence of water, which can be essential for a variety of operational considerations.