Who is responsible for preparing the Unified Command Plan (UCP)?

The Unified Command Plan (UCP) is a critical document that outlines the strategic responsibilities and geographic areas of operation for the U.S. Unified Combatant Commands. The Chairman of the Joint Chiefs of Staff (CJCS) plays a pivotal role in the preparation of the UCP, as this position involves coordinating the input and perspectives of the various military service chiefs and combatant commanders to ensure that the plan reflects the current strategic environment and military goals.

The UCP is updated periodically to incorporate changes in U.S. military strategy, national security interests, and global geopolitical dynamics. This responsibility underscores the CJCS's function as a key advisor to the President and the Secretary of Defense on military matters, including institutionalizing the joint military planning process that involves inter-service collaboration.

In contrast, while the Secretary of Defense oversees military policy and makes decisions regarding the overall defense strategy, the actual preparation of the UCP falls under the purview of the CJCS, who works closely with the Secretary of Defense to inform and shape the plan. The Chief of Staff of the Army and the NATO Command Structure have distinct roles separate from the preparation of the UCP, primarily focusing on the operational and command structure within their respective domains.