Model United Nations (also Model UN or MUN) is an academic simulation of the United Nations that aims to educate participants about civics, effective communication, globalization and multilateral diplomacy. In Model UN, students take on roles as foreign diplomats and participate in a simulated session of an intergovernmental organization (IGO). Participants research a country, take on roles as diplomats, investigate international issues, debate, deliberate, consult, and then develop solutions to world problems.
-Source wikipedia.org