Vingtième Siècle. Revue d'histoire - Année 1985 - Volume 7 - Numéro 1 - Pages 51-58A diffîcult integration : the Poles in France in the first part of the 20th century, Janine Ponty. After World War I, a large Polish community of a half million people emigrated to France. It was composeed of original Poles and of Westphalians , established since the 19th century in the Ruhr and having German citizenship. This specific community, which maintained strong national feelings, settled essentially in Northern France and worked in the coal fields. Originally opposed to any assimilation, its members tried to recreate a specific religious and cultural milieu, which caused them to be rejected by the French. The second World War broke this process, facilitated the integration of some, while about 100,000 others decided to return to and work in the new socialist Poland. 8 pages Source : Persée ; Ministère de la jeunesse, de l’éducation nationale et de la recherche, Direction de l’enseignement supérieur, Sous-direction des bibliothèques et de la documentation.