Australia is stocking up on weapons to protect itself against an increasingly "poor" and "disorderly" world.  To that end, Scott Morrison wants to spend $270 billion on defence over the next decade. The shopping list includes long-range missiles, satellites and under-sea sensors, and the clear subtext is that we might need those things to protect ourselves from China. So how much danger are we actually in? And will the new defence budget keep us safe? Today on The Signal, we're glimpsing the Government's vision of the hostile new world that's likely to surround us in years to come, as well as its blueprint for a more aggressive Australia to meet it. Featured: Ashley Townshend, Director, Foreign Policy and Defence, US Studies Centre, University of Sydney