When Arlette's brother, Lucien, moved away from home, he moved to Alsace in northwestern France. When war broke out and German troops occupied France in 1940, Alsace was annexed by Germany and thus part of Germany. Therefore, Arlette's father was somewhat worried about his son when he was at risk of going into German military service. But Germany's annexation of Alsace also had an impact on the University of Clermont Ferrand, where Arlette was admitted in the summer of 1942.