Since the publication of <I>The Hunt for Red October</i>, Tom Clancy established an unrivalled position as the world's leading thriller writer, with a string of million-selling novels and three major Hollywood films to his name. He was also the author of <i>SSN</i> and the non-fiction books <i>Submarine, Armoured Warfare, Fighter Wing and Marine</i>, and the co-creator of the Op-Centre series.