What is the primary function of combatant commands in the Marine forces?

The primary function of combatant commands within the Marine forces is regional command assignments. Combatant commands are responsible for overseeing military operations across specific geographic areas and ensuring that U.S. forces are integrated and coordinated effectively within that region. This structure allows for a focused approach to addressing national security challenges and responding to crises, with each command tailored to the unique political, cultural, and operational landscape of their assigned area.

By organizing the Marine forces under regional command assignments, these commands can establish and maintain vital relationships with both allied and partner nations, enhance joint operations with other branches of the military, and ensure that the Marines are prepared to carry out a wide range of missions in their respective regions. This focus on region-specific leadership is fundamental to the effectiveness of military strategy and operational readiness.