Rudy Giuliani has a piece (supposedly ghost-written) in the new issue of Foreign Affairs. An excerpt:

The next U.S. president will face three key foreign policy challenges. First and foremost will be to set a course for victory in the terrorists’ war on global order. The second will be to strengthen the international system that the terrorists seek to destroy. The third will be to extend the benefits of the international system in an ever-widening arc of security and stability across the globe. The most effective means for achieving these goals are building a stronger defense, developing a determined diplomacy, and expanding our economic and cultural influence. Using all three, the next president can build the foundations of a lasting, realistic peace.

Achieving a realistic peace means balancing realism and idealism in our foreign policy. America is a nation that loves peace and hates war. At the core of all Americans is the belief that all human beings have certain inalienable rights that proceed from God but must be protected by the state. Americans believe that to the extent that nations recognize these rights within their own laws and customs, peace with them is achievable. To the extent that they do not, violence and disorder are much more likely. Preserving and extending American ideals must remain the goal of all U.S. policy, foreign and domestic. But unless we pursue our idealistic goals through realistic means, peace will not be achieved.

Idealism should define our ultimate goals; realism must help us recognize the road we must travel to achieve them. The world is a dangerous place. We cannot afford to indulge any illusions about the enemies we face. The Terrorists’ War on Us was encouraged by unrealistic and inconsistent actions taken in response to terrorist attacks in the past. A realistic peace can only be achieved through strength.