A theater sustainment command is a United States Army logistics headquarters. The theater sustainment command is the senior army logistics command in a theater. The command is a modular organization tailored to meet specific requirements of the theater. It will command one or more sustainment commands.

When serving in a joint environment where the army is the dominant service, the TSC could provide core elements of a single, joint logistics command and control capability.

Theater sustainment commands Unit Patch Component Headquarters1st Sustainment Command (Theater)Active DutyFort Knox, Kentucky8th Theater Sustainment CommandActive DutyFort Shafter, Hawaii21st Theater Sustainment CommandActive DutyKaiserslautern, Germany79th Theater Sustainment CommandArmy ReserveJoint Forces Training Base, Los Alamitos, CA167th Theater Sustainment CommandArmy National GuardFort McClellan, Alabama377th Theater Sustainment CommandArmy ReserveBelle Chasse, Louisiana

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