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: U.S. Stretches Out S. Korea Troop Cut Until 2008  WASHINGTON/SEOUL (Reuters) - The United States agreed under  pressure from South Korea Wednesday to stretch out over an  additional three years until 2008 the withdrawal of 12,500 U.S.  troops from that country.

World