Mujahideen (Arabic: مجاهدين mujāhidīn) is the plural of mujahid (Arabic: مجاهد mujāhid). Mujahid is the Arabic term for one engaged in jihad (Arabic: جهاد jihād; literally, "struggle"). This term was first used to describe guerrilla-type militant groups led by the Islamist Afghan fighters in the Soviet–Afghan War.