For 25 years, the Animaje association has been setting up youth exchanges around cooperation projects with different countries. In recent years, several groups of young French people have gone to Tunisia, Romania, Greece, Moldova, Turkey... These projects are part of a thoughtful dynamic of solidarity exchange and of a citizenship under construction nourished by the progressive knowledge of relations between peoples and the environmental, social, cultural and political issues that cross them. This project, called Smiley moulin neuf, is an intercultural and solidarity meeting between young people of 4 nationalities, aimed at encouraging the involvement of young people in society by highlighting their spirit of initiative and their civic participation.