| Defense Courier Service | |
|---|---|
 | |
| Active | 1953–present |
| Country | United States |
| Branch | Joint |
| Role | Transport of secure material |
| Garrison/HQ | Scott Air Force Base, Illinois, U.S. |
| Motto(s) | Excellence in secure, rapid movement |
The Defense Courier Service (DCS) is a global courier network for the expeditious, cost-effective, and secure distribution of highly classified and sensitive material, established under the United States Transportation Command (USTRANSCOM). Operational control of global courier activities is exercised through USTRANSCOM's Defense Courier Division (TCJ3-C). The division oversees and synchronizes activity of 18 courier stations worldwide to service over six thousand accounts. Major accounts include the White House, the Department of Defense, the State Department, other federal agencies, authorized government contractors, and allied nations.
The DCS directly supports the President, Unified and Specified COCOMs, joint military operations, the Joint Chiefs of Staff, National Security Agency, Central Intelligence Agency, U.S. allies, State Department, and other federal agencies.
The DCS was formerly the Armed Forces Courier Service (ARFCOS) but was reorganized and renamed in 1985 after the Walker spy case.