Laura M. Fuchs & Sarah A Wagner 
UK National Security Strategy and Decision Planning [PDF ebook] 

Britain today is both more secure and more vulnerable than in most of her long history. More secure in the sense that they do not currently face, as they have so often in the past, a conventional threat of attack on their territory by a hostile power. But more vulnerable because they are one of the most open societies in a world that is more networked than ever before. This new book explores the current strategy and decision planning for the national security of the United Kingdom.