The I Marine Expeditionary Force is a Marine Air Ground Task Force (MAGTF) of the United States Marine Corps primarily composed of the 1st Marine Division, 3rd Marine Aircraft Wing, and 1st Marine Logistics Group. It is based at Marine Corps Base Camp Pendleton.
Combat service support is a topic that is, broadly speaking, a subset of military logistics. However, combat service support is often more limited in depth, as the related groups primarily address factors supporting readiness for combat operations. The United States Department of Defense organizes various agencies providing services such as medical assistance, for example, akin to other nations' militaries.
The 3rd Marine Logistics Group is the Logistics Combat Element (LCE) for III Marine Expeditionary Force currently headquartered on Camp Kinser, Marine Corps Base Smedley D. Butler, Okinawa, Japan. 3rd MLG provides combat service support (CSS) to III MEF units above the organic capability. CSS is the essential capabilities, functions, activities, and tasks necessary to sustain all elements of operating forces in theater at all levels of war. Combat service support includes, but is not limited, to supply, maintenance, transportation, general engineering, health services, and other services required by aviation and ground combat forces to permit those units to accomplish their missions.
The 1st Marine Logistics Group is a logistics unit of the United States Marine Corps and is headquartered at Marine Corps Base Camp Pendleton, California, with several subordinate elements located at Marine Corps Air Station Yuma and Marine Corps Air Ground Combat Center Twentynine Palms. It is the logistics combat element of the I Marine Expeditionary Force.
The 2nd Marine Logistics Group is a logistics unit of the United States Marine Corps and is headquartered at Marine Corps Base Camp Lejeune, North Carolina. 2nd MLG was formerly known as 2nd Force Service Support Group (FSSG), reorganized with its sister FSSGs into Marine Logistics Groups in 2005. The 2nd MLG is composed of approximately 8,000 marines and sailors.
In the United States Marine Corps, a Marine Air–Ground Task Force is the principal organization for all missions across the range of military operations. MAGTFs are a balanced air–ground, combined arms task organization of Marine Corps forces under a single commander that is structured to accomplish a specific mission. The MAGTF was formalized by the publishing of Marine Corps Order 3120.3 in December 1963, "The Marine Corps in the National Defense, MCDP 1-0". It stated:
A Marine air–ground task force with separate air ground headquarters is normally formed for combat operations and training exercises in which substantial combat forces of both Marine aviation and Marine ground units are included in the task organization of participating Marine forces.
Combat Logistics Battalion 7(CLB 7) is a logistics battalion of the United States Marine Corps. The unit is based out of the Marine Corps Air Ground Combat Center Twentynine Palms, California and falls under the command of the 1st Marine Logistics Group and I Marine Expeditionary Force.
Combat Logistics Battalion 5 (CLB-5) is a logistics battalion of the United States Marine Corps. CLB-5 is a subordinate battalion to Combat Logistics Regiment 1 and the 1st Marine Logistics Group. The unit is based out of the Marine Corps Base Camp Pendleton, California. The battalion nickname is "Traveller", named after the 16-hand grey American Saddlebred horse ridden into battle by General Robert E. Lee during the American Civil War. The unit slogan is "Success Is Not An Accident."
Combat Logistics Battalion 15 (CLB-15) is a military logistics battalion in the United States Marine Corps based out of Camp Pendleton, California. It consists of approximately 275 Marines and Sailors. It is part of Combat Logistics Regiment 17 within the 1st Marine Logistics Group, I Marine Expeditionary Force. When assigned under the operational control of the 15th Marine Expeditionary Unit, it becomes the Logistics Combat Element (LCE) providing expeditionary combat logistics support to all supported elements of the Marine Expeditionary Unit. CLB-15 has two sister MEU CLBs also based out of Camp Pendleton: CLB-11 and CLB-13.
The United States Marine Corps is organized within the Department of the Navy, which is led by the Secretary of the Navy (SECNAV). The most senior Marine commissioned officer is the Commandant of the Marine Corps, responsible for organizing, recruiting, training, and equipping the Marine Corps so that it is ready for operation under the command of the unified combatant commanders. The Marine Corps is organized into four principal subdivisions: Headquarters Marine Corps, the Operating Forces, the Supporting Establishment, and the Marine Forces Reserve.
Combat Logistics Regiment 15 (CLR-15) was a logistics regiment of the United States Marine Corps. When active, it fell under the command of the 1st Marine Logistics Group and I Marine Expeditionary Force. The unit was based out of Marine Corps Base Camp Pendleton, California, United States.
In the United States Marine Corps, the logistics combat element (LCE), formerly combat service support element, is the portion of the Marine air-ground task force (MAGTF) responsible with providing logistical support. It provides equipment and personnel to keep the MAGTF running logistically.
Combat Logistics Battalion 13 (CLB-13) is a logistics battalion of the United States Marine Corps. In garrison, it falls under the command of Combat Logistics Regiment 17 and the 1st Marine Logistics Group; however, when deployed, it forms the logistics combat element of the 13th Marine Expeditionary Unit. The battalion is based out of the Marine Corps Base Camp Pendleton, California.
The 4th Supply Battalion is a battalion of the United States Marine Corps Reserve that specializes in distributing and warehousing military goods and equipment. Headquartered in Newport News, Virginia, they fall under the command of the 4th Marine Logistics Group and Marine Forces Reserve.
The 1st Maintenance Battalion is a battalion of the United States Marine Corps that provides intermediate-level maintenance for the I Marine Expeditionary Force's tactical ordnance, engineer, motor transport, communications electronics and general support ground equipment. The Marines and Sailors of 1st Maintenance Battalion are regularly assigned and deployed around the world with command elements that deliver tactical logistics support to I MEF units. The command is based out of Camp Las Pulgas, Marine Corps Base Camp Pendleton, California and is organized under the command of the 1st Marine Logistics Group.
The 2nd Maintenance Battalion is a battalion of the United States Marine Corps that provides field-level intermediate maintenance for the II Marine Expeditionary Force's tactical ordnance, engineer, motor transport, communications electronics and general support ground equipment. They are based out of Marine Corps Base Camp Lejeune, North Carolina and fall under the command of 2nd Marine Logistics Group.
2d Transportation Support Battalion is a logistics unit of the United States Marine Corps that is based at Marine Corps Base Camp Lejeune, North Carolina. The battalion falls under the command of Combat Logistics Regiment 2 and the 2nd Marine Logistics Group. The battalion was reactivated October 1, 2014.
1st Transportation Battalion (TB) was a General Support (GS) logistics unit of the United States Marine Corps that was headquartered at Marine Corps Base Camp Pendleton, California. The unit last fell under the command of Combat Logistics Regiment 1 and the 1st Marine Logistics Group until deactivation on 12 January 2024.
1st Distribution Support Battalion(1st DSB) is a logistics battalion in the United States Marine Corps that supports distributed maritime operations and expeditionary advanced base operations. The unit is based at Marine Corps Base Camp Pendleton, California and falls under the command of the 1st Marine Logistics Group and the I Marine Expeditionary Force.
