The USSR liberated more concentration camps than the Allies!
The Soviet forces in Germany were among the first to discover the horrors of Nazi concentration camps. Those who weren’t killed by the Nazis suffered from extreme malnutrition and mistreatment. Diseases and epidemics were extremely common.
The Soviets first came to the camp Majdanek in Poland. The Germans had burnt down the crematorium, where they had been burning dead bodies, in an attempt to remove evidence of the mass murder. However, they still left behind a gas chamber.
As the Soviets continued their march, they managed to liberate many other camps, including Auschwitz, which was the largest extermination and concentration camp. The Soviets found evidence of the mass murder including 14,000 pounds of hair!
Although Soviet forces liberated more concentration camps, the Allied forces also liberated a number of camps. At Buchenwald, American troops freed more than 20,000 prisoners, as well as liberated other camps such as Dora-Mittelbau, Flossenbürg, Dachau, and Mauthausen. British forces liberated Neuengamme and Bergen-Belsen. In Bergen-Belsen 60,000 prisoners were freed, though sadly many died of typhus soon after because of an epidemic.