Photo of John M. Eustace
John M. Eustace
Deputy Assistant Secretary and Assistant Director for Domestic Operations
Bureau of Diplomatic Security
Term of Appointment: 01/05/2015 to present

John Eustace was named Deputy Assistant Secretary and Assistant Director for Domestic Operations on January 5, 2015. In this capacity, Mr. Eustace is responsible for managing and directing almost all Diplomatic Security (DS) activities within the continental United States, including all DS field offices, criminal investigations, counterintelligence, and protection operations.

Before assuming his current position, Mr. Eustace served as Director of Overseas Protective Operations, the program office that provides administrative and operational oversight for the Department’s local guard, residential security, and worldwide protective services programs that are implemented at U.S. missions abroad.

He also has served as Deputy Assistant Director for International Programs, Regional Director of Operations for the Western Hemisphere, and has had assignments in the Physical Security Division, Criminal Investigations Division, and the Washington Field Office. Mr. Eustace also worked in the U.S. Department of State’s Bureau of Overseas Building Operations and Bureau of Human Resources.

Earlier in his career, Mr. Eustace served at the U.S. embassies in Pakistan, Guatemala, Bolivia, Tanzania, Australia, and Germany. He joined the Diplomatic Security Service as a Special Agent in September 1986.

Mr. Eustace graduated from Drew University with a BA in Political Science and from the Marine Corps Command and Staff College with an MA in Military Studies. Prior to joining the Department of State, he served as an officer in the U.S. Marine Corps.

Mr. Eustace is a career member of the Senior Foreign Service, selected to the rank of Minister Counselor. He is a recipient of the Department’s Superior Honor Award, several Meritorious Honor Awards, as well as other recognition from the Department of State, other U.S. Government agencies, various private organizations and other governments.