The U.S. Army Transportation Corps provides an overwhelming capability for Army and joint forces in achieving operational reach, freedom of action and prolonged endurance. Army transportation, combined with strategic enablers, delivers to the Combatant Commander expeditionary capabilities. Introductory figure-1 depicts the strategic to tactical transportation system. It illustrates transportation agencies, organizations, and commands that deploy forces; distribute personnel and materiel; sustain forces for extended durations; and redeploy/retrograde forces and materiel upon mission completion. At the foundation is the Defense Transportation System (DTS) which is that portion of the Nation's transportation infrastructure that supports the DOD transportation needs in peace and war (JP 4-01). When these needs exceed the Service's lift capabilities, commercial industry supports the DOD with contracts and agreements such as the Civil Reserve Air Fleet (CRAF) and the Voluntary Intermodal Sealift Agreement.