Formed by Damian Kratzenberg, a university professor with a German background, the movement only emerged after the invasion and was declared the only legal political movement by the Nazis. Using the slogan Heim ins Reich (Home to the Reich), their declared aim was the full incorporation of Luxembourg into Nazi Germany. The policy was supported by Nazis who used the Bewegung as means towards this end. The aim was accomplished in August 1942, although the VDB continued to operate and peaked at 84,000 members. Many of these joined when it became clear that membership was necessary to retain employment. A number of leading members also held dual membership of the National Socialist German Workers Party after incorporation. The movement disappeared after the war, and Kratzenberg was executed in