Complex sentence: The Czar Lazar Guard is an organization, which UNMIK (United Nations Mission in Kosovo) has prohibited from entering Kosovo and has deemed illegal is a group of Serbian ultra-nationalists who utilize rhetoric statements which are very anti Albanian.
Split into simpler sentences: The Czar Lazar Guard is an organization, which UNMIK (United Nations Mission in Kosovo) has prohibited from entering Kosovo and has deemed them illegal. They are considered a group of Serbian ultra-nationalists who utilize rhetoric statements which are very anti Albanian.