Final answer:
The Defense Planning Guidance is the official document that outlines the secretary of defense's plans and programs for the Department of Defense.
Step-by-step explanation:
The official program that summarizes the secretary of defense approved plans and programs for the Department of Defense is known as the Defense Planning Guidance. This document is critical for the strategic planning and coordination of the U.S. armed forces, which includes the Army, Navy, Marine Corps, and Air Force. The Defense Planning Guidance outlines the Department's priorities, goals, and the means to achieve them, acting as a blueprint for military readiness and strategic operations.