Russia’s invasion of Ukraine has produced big changes in NATO and EU states. But shock at Russia’s aggression and fear of its future intentions seem to point in one direction, whereas its dismal military performance and its vulnerability to economic punishment seem to point in another. NATO and EU expansion are once again on the table. Will the aftermath of the war strengthen NATO and, with it, the central U.S. position in European security? Or can Russian aggression impel greater non‐​NATO security cooperation, giving European states and the EU a larger role to play and a greater say over security affairs in Europe? On the first day of NATO’s summit in Madrid, please join Nicole Koenig and Barry Posen for a discussion of what the war in Ukraine suggests about the future of European security.

• The U.S. Is Expanding Its Goals in Ukraine. That’s Dangerous, by Brendan Rittenhouse‐​Green and Caitlin Talmadge, The Washington Post

• Europe Can Stand on Its Own. The Ukraine Invasion Proves It., by Benjamin H. Friedman and Justin Logan, The Week

• We’re Not All Ukrainians Now, by Justin Logan, Benjamin H. Friedman, Patrick Porter, Politico Europe