aaron friedberg anarchy arms race arthashastra balance of power in international relations brent scowcroft cardinal richelieu carl von clausewitz chanakya charles de gaulle complex interdependence constructivism in international relations containment critical international relations theory defensive realism democratic peace theory dependency theory diplomacy english school of international relations theory fareed zakaria federalism functionalism in international relations geostrategy gideon rose global justice hans morgenthau hedley bull henry kissinger herman kahn history of the peloponnesian war international relations intervening variable john mearsheimer joseph stalin kenneth waltz liberal international relations theory martin wight marxist international relations theory military national interest national security neofunctionalism neoliberalism in international relations nuclear strategy offensive realism on war otto von bismarck peace power in international relations power politics prince klemens wenzel von metternich randall schweller rationality realpolitik reinhold niebuhr richard nixon robert gilpin robert jervis security dilemma sovereignty state stephen walt sun tzu the art of war thomas hobbes thucydides unitary state united nations walter lippmann warring states period william wohlforth world war ii zbigniew brzezinski zero-sum