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: World ; Russia defends anti-terror preventive strikes  quot;Russia is not the only country that has announced the possibility of using or carrying out preventive strikes. I would like to stress that we did not invent it, quot; he added, hinting that Moscow was following a US lead.

World