The Maritime Prepositioning Force (MPF) is a strategic power-projection capability that combines the lift capacity, flexibility, and responsiveness of surface ships with the speed of strategic airlift. The maritime prepositioning ships (MPS) of the MPF are strategically forward deployed around the globe, and provide combatant commanders (CCDRs) with persistent forward presence and rapid crisis response by pre-positioning the combat equipment and supplies to support two Marine Expeditionary Brigades (MEBs) for up to 30 days.
The MPF is organized into two Maritime Prepositioning Ships Squadrons (MPSRON) with 14 ships overall. MPSRON-2 is based at Diego Garcia in the Indian Ocean, and MPSRON-3 is based in the Guam-Saipan area of the Western Pacific Ocean.
MPSRONs are interchangeable and each is designed to support the rapid closure of a MEB. The MPF can also support smaller or larger MAGTFs by employing as few as one or as many as 14 ships. The MPF consists of government-owned ships operated by Military Sealift Command. When needed, these ships move to a crisis region and offload either in port or offshore via in-stream offload. Off-loaded equipment and supplies are then “married-up” with Marines and Sailors arriving at nearby airfields. The result is a combat-ready Marine Air-Ground Task Force (MAGTF) rapidly established ashore, using minimal in-country reception facilities. The MAGTF combat capability provided by the MPF is capable of supporting CCDR military operations across the ROMO.