The 557th Combat Sustenance Squadron is a key unit within the United States Air Force. Its primary role revolves around providing logistical support to combat units, ensuring they have the necessary resources for successful operations. This includes duties such as food service, fuel management, and transportation. As part of the Air Mobility Command, the squadron operates under the Air Force Material Command and is stationed at Joint Base Lewis-McChord in Washington State. The 557th CS Sq supports various military operations both domestically and abroad.