What group of people did the CIA secretly train?

The CIA secretly trained various groups over the years, most notably the Contras in Nicaragua during the 1980s. This group was composed of anti-Sandinista rebels fighting against the Sandinista government, which the U.S. viewed as a communist threat. Additionally, the CIA has been involved in training various foreign military and paramilitary forces in different regions, including Afghan mujahideen fighters during the Soviet-Afghan War.