The 557th Combat Sustainment Squadron is a key unit within the United States Air Force. Its primary role involves providing combat logistics support to assigned and attached units, ensuring their operational readiness and sustainability in various theaters. This includes tasks such as fuel, water, and food supply management, transportation of personnel and equipment, and maintenance of facilities. The squadron operates under the 380th Expeditionary Wing and is stationed at Kabul International Airport, Afghanistan. The unit plays a crucial role in supporting ongoing military operations by ensuring that necessary resources are available when and where they are needed.