The Mobile Security Deployments (MSD) is a small specialized tactical unit within the Diplomatic Security Service (DSS) of the United States Department of State. The MSD provides U.S. embassies and consulates with security support, protects the Secretary of State and other U.S. officials, including domestically as well as visiting foreign officials, and also provides security training at U.S embassies and consulates.
The majority of its operations are overseas with only 10% conducted in the United States. The unit was formed in 1985 and c. 2002 was renamed Mobile Security Deployments from Mobile Security Division.
