The first, and often the hardest, step in any defence policy is to define strategic objectives—what we want our armed forces to be able to do. This is especially hard for a country like Australia, because most of the circumstances in which we would rely on the Australian Defence Force most heavily are only credible if the international order in Asia were to have changed significantly. How can we decide what we would want our armed forces to do in a region very different from the one we know today? This problem has become more acute since the early 1990s, because the end of the Cold War and the rise of China have increased the probability of major systemic change in Asia. This essay explores an approach to identifying long-term strategic obj...