These are Buchenwald concentration camp guards who received a beating from the prisoners when the camp was liberated by the Americans. The picture was taken in April 1945, by the U.S. military photographer Elizabeth Miller.
800 mm super heavy rail gun Dora Adolf Hitler (Center), Albert Speer (left) and other dignitaries arrived at the site at Rugenwalde (now Darłowo, Poland), where they were presented the 800 mm super heavy rail gun Dora (80-cm-Kanone (E) and the prototype of the SAU SD. Kfz. 184 ' Ferdinand '. Rugenwalde, march 19th 1943