Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Karzai win chance to cleanse government overthrew the Taliban militia in late 2001 for refusing to handover al Qaeda leader Osama bin Laden. coalitions with main rivals, characterised as regional strongmen who rely on ethnic loyalties and private militias.

World