Up to the late 1980s, peacekeeping missions were operated by six officials in the United Nations Office of Special Political Affairs, which was headed first by Brian Urquhart and then Marrack Goulding.
United States Department of Defense | United States Department of State | United States Department of Justice | United States Department of Agriculture | United States Department of Energy | United States Department of War | United States Department of Veterans Affairs | United States Department of the Treasury | War Department | Los Angeles Police Department | United States Department of Transportation | Beni Department | Department of Energy | Special Operations Executive | United States Department of Labor | Cochabamba Department | United States Department of Health and Human Services | United States Department of Education | Antioquia Department | United States Department of the Interior | United States Department of Housing and Urban Development | United States Department of Homeland Security | New York City Fire Department | Department of Transportation | Chief of Naval Operations | Department for Transport | Chicago Police Department | New York City Police Department | Department for Environment, Food and Rural Affairs | Cundinamarca Department |