We live in a moment of global uncertainty and American self-doubt. As confidence in the Western order and its American backing have waned, hope for a benign multi-polar order has shown to be hollow. We face a choice. We could stay home in splendid isolation, in the belief that our economy will thrive, and terror will avoid us, and great power tensions in Asia and Europe won’t disrupt the global economy or pull us in, or threaten our way of life. We could do so, but it would be the height of foolishness. We would be willing walls of sand around both the economy and our security. If you think hope isn’t a strategy, try denial.