This collaborative international research project seeks to measure trends in binational marriages between citizens of the European Union and examine the extent to which these binational couples both express and contribute to the emergence of a new European middle class.  The study departs from previous research on intermarriage through its exclusive focus on marriages between EU citizens and through the examination of binational couples not from the perspective of how foreigners integrate in host societies but, rather, from the standpoint of the formation of new social groups that one could describe as European.  The project brings together demographic and sociological analysis thanks to the collaboration of an experienced and interdisciplinary multinational team of researchers from countries with a significant presence of EU citizens.