Which agency is responsible for providing maps used by the Army?

The National Geospatial-Intelligence Agency is responsible for providing maps and geospatial intelligence support for the Army and other branches of the military. Its primary focus is on collecting, analyzing, and disseminating geospatial intelligence, which includes mapping data necessary for strategic planning and operational readiness. This agency plays a crucial role in ensuring that military forces have accurate and up-to-date geographical information, which is vital for mission planning and execution.

In contrast, the other agencies listed have different primary functions. For instance, the National Security Agency focuses on signal intelligence and information assurance, while the Defense Intelligence Agency specializes in military intelligence operations. The Central Intelligence Agency is mainly involved in foreign intelligence and covert operations, rather than providing direct geospatial support for military use. Thus, the choice of the National Geospatial-Intelligence Agency reflects its dedicated mission to support military operations through its mapping and geospatial services.