In current service in A0, A1, and M1300 configurations, the M1070 is coupled to a DRS Technologies M1000 semi-trailer. The primary purpose of this combination for the U.S. Army is the transport of the M1 Abrams tank. The M1300, covered in a separate sub-section, is a U.S. Army Europe-specific derivative designed to be road legal within Europe and operates with a different trailer.[7]