"... In the North Atlantic Treaty Organization's (NATO's) central region, the Combat Equipment Group Europe (CEGE) was responsible for maintaining and storing what was called "pre-positioning of materiel configured to unit sets," or POMCUS. Rather than store 1,000 of this and 100 of that in a warehouse, as is common practice in depot storage, CEGE stored in one location all the equipment that a unit, such as an artillery battery, would need. That storage method made it easy for units from the United States to deploy to Europe and then draw their equipment. POMCUS was a key feature of the Reforger (return of forces to Germany) exercises. What was formerly war reserves and POMCUS stocks are now combined into AWR stocks.
In REFORGER, forces deployed from CONUS to CEG-E sites, where they drew their forward-deployed equipment, called pre-positioned organizational materiel configured to unit sets (POMCUS). Units would train in their GDP locations or in other exercises and return the equipment to CEG-E sites, called combat equipment companies, where the equipment was maintained and stored for the next REFORGER exercise or the next implementation of the GDP. U.S. Army Europe (USAREUR) and the 21st Support Command (now the 21st Theater Support Command) provided command and control of CEG-E and its POMCUS assets...".
" ... POMCUS is an acronym which stands for Prepositioned Overseas Materiel Configured to Unit Sets. These were/are American equipment and supply dumps in continental Europe designed to allow NATO to reconstitute a European ground force presence as quickly as possible. This was done because it would take unacceptably long to prepare, transship, unload and organize U.S. military units (divisions, typically) in Europe, and because World War I and II had shown the vulnerability of the SLOCs. In the event of war, American servicemen and women serving in units in the CONUS would get on military transports or jetliners of the CRAF and fly to various staging points in Europe, where they would be met by warehouses full of equipment which precisely matched what they'd left behind, from main battle tanks to bullets to beans. They would then 'mate up' with this equipment, and voila, you'd have a fresh American battalion or division moved across the Atlantic in days rather than weeks or months, with no chance of the ship carrying your tanks being sunk midway by marauding Soviet attack submarines ...".