Apply soon for one of the largest MUN conferences in the world. The Harvard MUN conference (HNMUN) is the most competitive conference LeidenMUN attends. HNMUN is nearly as old as the United Nations itself and is often times considered to be the founder of the Model United Nations concept. It is with great excitement that LeidenMUN will, for its 12th consecutive year, fly overseas to attend this highly competitive and intense conference in February 2018. Read more here.