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: NATO bolsters presence for Afghan election BRUSSELS -- Nearly 2,000 NATO troops, including two  quot;rapid response quot; battalions from Spain and Italy, began arriving in Afghanistan this week to strengthen the international military presence there in time for the Oct. 9 presidential election, NATO officials said.

World