We’re increasing defense spending and launching military strikes—and we’re putting it all on the national credit card. That may be no coincidence. Sarah Kreps finds that Americans are more supportive of wars when they are financed through debt rather than taxes. Across the world, Matt DiGiuseppe finds that a nation's creditworthiness leads to more military spending, especially in response to threats. Military power and conflict used to be financed by taxes, limiting democracies' appetites--but now that accountability has been lost.