Final answer:
A revolutionary, also known as a rebel, is someone who actively fights for change against an established government, with examples seen in Libya, Syria, and the Mujahedin in Afghanistan.
Step-by-step explanation:
The term revolutionary or rebel refers to an individual or group that seeks change, often through drastic measures, including active combat, against an established government. This change process has happened in many countries, including Libya and Syria, where various groups fight for different outcomes, complicating peace efforts. A contemporary example includes the Mujahedin, Islamic guerilla warriors in Afghanistan who resisted the Soviet Union's invasion, and later some factions became known as the Taliban, which eventually took control of the country. The complexity of these situations arises from the multitude of goals and ideals held by different factions, thus making the path to peace and resolution a challenging one.