The 777th Expeditionary Prime Base Engineer Emergency Force Squadron is a unit within the United States Air Force responsible for providing emergency engineering support to U.S. and coalition forces at deployed prime bases. This squadron is part of Air Expeditionary Forces, which are temporary units formed to meet specific combat or humanitarian requirements. The 777th EPBEES’ primary mission includes repairing and maintaining infrastructure, providing force protection, and performing critical contingency operations. These tasks ensure the operational readiness of bases in various geographical locations around the world. The squadron is mobilized when necessary to respond to emergencies or crises that require engineering expertise and quick response times.