The enlarged and enlarging European Union is a novel political project in motion. The supranational institutions created for six member states over 50 years ago are influencing the everyday lives of more than 500 million European citizens in 27 countries. In addition to being national citizens, such as French, Polish or Hungarian, they are now also Europeans. This generates the following questions: How do ongoing political processes affect who the Europeans are? What is the content of their reconstructed identity? What are the consequences of changes in collective identity formation for...