When German troops invaded Belgium on 10 May 1940, the Belgian authorities under instruction from De Foy rounded up the "unpatriotic" subjects, including Flemish nationalists, communists and non-Belgian citizens, most of them Jewish refugees from Germany and Poland.
When German troops invaded Belgium on 10 May 1940, the Belgian authorities under instruction from De Foy rounded up the "unpatriotic" subjects. After being instructed to share the list with members of the Flemish National Union, Verdinaso and Rexism, those rounded up included Flemish nationalists, communists and non-Belgian citizens, most of them Jewish refugees from Germany and Poland.