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: 3 U.S. Soldiers Killed by Bomb in Iraq BAGHDAD, Iraq - A roadside bomb attack killed three American soldiers in a convoy on the day of a country-wide offensive by U.S. troops and Iraqi soldiers against Sunni insurgents and suspected extremists...

World