The only thing that is certain about the future of terrorism is that patterns of terrorism are going to change. Our guesses about the future do not have to be pure speculations, however. This book examines those societal conditions that cause terrorism to occur. Using these as analytical tools, I have explored more than a dozen diﬀerent trends with a view to identifying how these are likely to impact on future patterns of terrorism. Through these analyses, I have provided empirical underpinnings for my initial proposition that the occurrence of terrorism is rooted in structural societal factors and that these factors are changing in ways, which makes transnational terrorism more likely to occur.