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 vows to fight against terrorism President Pervez Musharraf and his Afghan counterpart Hamid Karzai tonight vowed to enhance their capability to fight terrorism, while Musharraf assured the Afghan leader that Pakistan would not allow its territory to be used by Taliban to destabilise 

World