Jean-Louis Bertrand, son of the French Nazi concentration camp survivor Louis Bertrand (1923 - 2013), stands at a grave field and the burial ground of the "Langenstein-Zwieberge Concentration Camp Memorial" on November 7, 2024 near Halberstadt, eastern Germany. During the construction of a tunnel system in which warplanes were to be built in the last months of World War II, in the subcamp (Codename ‘Malachite’) of the Buchenwald concentration camp almost 2.000 men died. (Photo by Ronny Hartmann / AFP)