24 February 2023 marks the anniversary of the Russian attack on Ukraine, which brought and continues to bring terrible suffering to millions of people. More than 18 million people have fled since then. The EU and the German government had imposed a massive sanctions programme on Russia and are meanwhile trying to support households in the energy crisis through huge relief packages. The ZEW – Leibniz Centre for European Economic Research is investigating the consequences of the war for the economy, society and migration of Ukrainian citizens. In this way, our research institute contributes to the public debate.