Final answer:
The 'face of the camp' likely refers to the changes in routine and structure of the camp due to evacuation, with Jews being ordered to clean as a way to hide evidence. Allied troops documented these conditions upon liberation to preserve evidence for justice and remembrance.
Step-by-step explanation:
The evacuation of the concentration camps during the Holocaust brought about significant changes in the camps' appearances. Specifically mentioned on page 83, where the question refers to the 'face of the camp', it can be inferred that this relates to the abrupt and forced change in the routine and structure of the camp due to the evacuation processes. Jews were often ordered to clean the floors and other parts of the camps as a way to eliminate evidence of the atrocities and to maintain an false image of order and hygiene within the camp environment. This practice was part of the broader Nazi policy to disguise the true nature of the extermination camps and their ultimate goal of mass genocide.
By cleaning the floors, the Jews were unknowingly participating in the concealment of the Holocaust's evidence, which the Allied troops later sought to preserve following the liberation of the camps. The testimonials from the liberating soldiers, like those of the 45th Infantry Division at Dachau led by Felix L. Sparks, reveal the shocking conditions and the urgency to document the reality of these sites. The atrocities, from gas chambers to mass executions, were meticulously uncovered and cataloged during the aftermath to ensure that justice was served and that the horrors of the Holocaust would not be forgotten or dismissed as mere propaganda.