I believe the liberal international order is under assault from Russia, and from other authoritarian regimes, and it is being questioned from within the West by nationalists, by nativists, and by people who doubt our - doubt the values of the West. We've gone through periods like this before; in the '70s, after Vietnam and Watergate, and certainly in the '30s, when people thought liberal democracy was dead, and the future belonged either to the fascists or the communists.

[Russians would like to] undermine the West and its institutions, create doubts about NATO, create doubts about the European Union, support nationalists on the right just as the Soviet communists supported communists on the left. Weaken the West in general and create an atmosphere in which we`re uncertain about ourselves.

Realism as a foreign policy doctrine means basically you don't care about values; you consider them a luxury, and it leads to a kind of acquiescence in spheres of influence. Now, spheres of influence sound good if you're a graduate student, or a certain kind of - an academic with a certain habit of mind. But in fact, spheres of influence don't work out very well, certainly not for the victims, and there are always victims.

Russia could be, in fact, it would have to be a different Russia, but it could be a splendid ally. I will say this for the Russians: on their - in their favor, they have the intellectual capacity and the habits of mind to act in the world on a strategic scale, and were they do to so in service of a better cause than their current set of grievances, they would be a natural partner.

Realism is important in foreign policy. You have to be realistic about what you can achieve, and about the pitfalls, and problems along the way, of which there are plenty. Nothing is easy. It's always rough.

What [Russians] want to do is undermine the Western liberal order.

America's grand strategy did not come from nowhere. It followed from our deeper conception of ourselves, and our American identity. Who are we, Americans? What is our nation? We are not an ethnostate with identity rooted in shared blood. The option of a white man's republic ended at Appomattox.