What category of classified military information applies when sharing classified U.S. design blueprints for a radar system?

The correct category for sharing classified U.S. design blueprints for a radar system is Production Information. This category specifically pertains to details about the development and manufacturing processes associated with military equipment and technology. Sharing design blueprints falls under this category because they contain critical details regarding how the radar system is constructed, which is essential to maintain operational security and technological superiority.

Production Information is sensitive as it can reveal vulnerabilities, capabilities, and the technological edge of a military asset. By classifying this information, the U.S. ensures that potential adversaries do not gain insights into their military technology, which could lead to reverse-engineering or the development of countermeasures. Thus, managing access to production information protects national security interests and the efficacy of military operations.

The other categories mentioned, while also important, do not specifically relate to the sharing of design blueprints. For example, organization, training, and employment of forces focus more on personnel and readiness rather than technological details; intelligence activities cover the gathering and processing of information but not the specifics of military hardware; military operations are concerned with the execution of missions and tactics rather than the underlying technology.