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: Renewed fighting in Darfur inevitable, says African Union  quot;Astronomical quot; quantities of arms and ammunition have poured into Sudan #39;s Darfur region in the last two weeks and the government is poised for a major military offensive, African Union ceasefire monitors said yesterday.

World