Title: "Was macht die Welt, in der wir zu Hause sind?"
Subjects: Correspondence, Anti-Nazi movement, Biography, Concentration camp inmates, Sources, History, World War, 1939-1945, Campaigns, Nazi concentration camp inmates
Places: Germany, Eastern Front
People: Walther Lüders (1896-1945), Lina Lüders (1896-1977), Axel Lüders (1919-1997)
Time periods: 1933-1945