Operation Spartan Shield (OSS) is a United States Army Central operation in the Middle East. OSS is commanded by United States Army Central and includes units from all service branches. Task Force Spartan is the U.S. Army component of OSS. The 408th Contracting Support Brigade supports contracting requirements for Operation Spartan Shield, described in Army Lawyer as "USARCENT's steady state operation to Build Partner Capacity [that is, to conduct Capacity building) in the Middle East."