Final answer:
The Mujahideen fought against the Soviet-supported government in Afghanistan.
Step-by-step explanation:
The group that fought against the Soviet-supported government in Afghanistan was called the Mujahideen. They were Islamic guerrilla warriors who opposed the Afghan government and the Soviet Union. The United States provided support to the Mujahideen in their fight against the Soviets as part of the Reagan Doctrine's support for any force fighting against Communist forces.