An instructor (top) with the Diplomatic Security Service’s Antiterrorism Assistance (ATA) program coaches law enforcement officers with a SPEAR team from Tunisia during the weapons test at the first SPEAR Quick Response Force Summit Challenge, December 10, 2018, in Nairobi. ATA trains Special Program for Embassy Augmentation and Response teams in participating nations to respond within minutes to emergencies involving U.S. diplomatic facilities or personnel. (51 Seconds photo)

U.S. Department of State

The Lessons of 1989: Freedom and Our Future