The Military Surface Deployment and Distribution Command (SDDC) is the Army Service Component Command of the U.S. Transportation Command (USTRANSCOM) and is a major subordinate command to Army Materiel Command (AMC). This relationship links USTRANSCOM's Joint Deployment and Distribution Enterprise and AMC's Materiel Enterprise. The command also partners with the commercial transportation industry as the coordinating link between DOD surface transportation requirements and the capability industry provides.