Final answer:
FM 3-25.26 defines a map as a graphic representation of the Earth's surface, used for navigation and understanding geography.
Step-by-step explanation:
The FM 3-25.26 is a Field Manual that provides guidance on map reading and land navigation. In this manual, a map is defined as a graphic representation of the Earth's surface or a portion of it, drawn to scale, showing various natural and man-made features.
Maps are used to navigate, plan routes, locate landmarks, and understand geographical relationships between different areas. They provide information about topography, landforms, bodies of water, roads, buildings, and other features.
In summary, according to FM 3-25.26, a map is a visual representation of the Earth's surface, showing features and helping with navigation and understanding of geographical relationships.