What does Russia's war in Ukraine reveal about competing theories of foreign policy thought? The Council’s Elizabeth Shackelford is joined by Emma Ashford, senior fellow at the Scowcroft Center for Strategy and Security, and James Goldgeier, visiting scholar at Stanford University, to debate the war, and what might happen next, from the perspectives of liberal internationalism, the predominant foreign policy doctrine which champions cooperation, and realism, a doctrine that views competition and conflict as inevitable.