An official website of the United States Government Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

A Diplomatic Security Service (DSS) special agent (back left) and a Contra Costa County Sheriff SWAT operator (left foreground) provide medical care under the guidance of a DSS operational medicine instructor (far right), Clayton, Calif. May 2021, (U.S. Department of State photo)

A Diplomatic Security Service (DSS) special agent (back left) and a Contra Costa County Sheriff SWAT
operator (left foreground) provide medical care under the guidance of a DSS operational medicine
instructor (far right), Clayton, Calif. May 2021, (U.S. Department of State photo)

U.S. Department of State

The Lessons of 1989: Freedom and Our Future