The U.S. Air Force has not officially communicated a specific military requirement for an ultra-large bomb, but it does have a concept for a collection of massively sized penetrator and blast weapons: the so-called "Big BLU" collection, which includes the MOAB (Massive Ordnance Air Blast) bomb. Development of the MOP was performed at the Air Force Research Laboratory, Munitions Directorate, Eglin Air Force Base, Florida with design and testing work performed by Boeing. It is intended that the bomb will be deployed on the B-2 bomber, and will be guided using GPS.