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: Australia boosts anti-terror defences with new maritime security zone (AFP) AFP - Australia is to boost its defence against terrorism by creating a 1000-nautical mile security zone around its coast to protect its shipping, ports and oil rigs from attack, it was reported here.

World