This doctrinal publication focuses on logistics. It describes the theory and philosophy of military logistics as practiced by the United States Marine Corps. It provides Marines a conceptual framework for understanding how logistics is an essential aspect of every military operation. The Marine Corps’ view of logistics is based on our common understanding of the nature of war, our role in the joint force, and our warfighting philosophy as described in Marine Corps Doctrinal Publication (MCDP) 1, Warfighting.