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: Japan to Keep Troops in Iraq Despite Hostage Case  TOKYO (Reuters) - Japanese Prime Minister Junichiro Koizumi  said Wednesday he would not withdraw troops from Iraq despite a  threat by a militant group to behead a Japanese hostage within  48 hours unless Tokyo pulled its forces out.

World