Marine Corps Doctrinal Publication (MCDP) 1-0, Marine Corps Operations, provided a bridge between the maneuver warfare philosophy articulated in our first nine MCDPs and the tactics, techniques, and procedures contained in our warfighting and reference publications. It focused on describing the role of the Marine Corps component in providing, sustaining, and deploying Marine Corps Forces at the operational level of war and on how the largest of our Marine air-ground task forces (MAGTFs), the Marine expeditionary force, conducted operations at the tactical level. Developed just prior to, and published shortly after, the momentous events of 11 September 2001, the original edition reflected the language and operational constructs prevalent within joint doctrine at that time. Key among them were the notions of
The U.S. Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States. In the civilian leadership structure of the United States military, the Marine Corps is a component of the United States Department of the Navy, often working closely with U.S. naval forces for training, transportation, and logistic purposes; however, in the military leadership structure the Marine Corps is a separate branch.