Allied troops would approach, if the gates were not opened for them, then they would open them.
The Jews were liberated from the concentration camps.
The American, British, and Russian soldiers liberated the concentration camps during 1943-1945.
The Allies liberated many Nazi and Axis concentration camps in World War Two.The prisoners of war were sent to concentration camps.
Allied forces such as Americans, United kingdom, and Soviets liberated the concentration and death camps.
Most concentration camps were liberated by the allied forces towards the end of the war.
allied forces arrived at the camps and freed the prisoners
Each camp ceased to be a concentration camps when it was liberated by one of the Allied armies. This happened on different dates at each camps.
The Nazis who killed the inmates and not much documents about the camps
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Five concentration camps were liberated by US troops, on 11 April 1945 Dora Mittlebau and Buchenwald were reached. On 23 April Flossenburg was liberated, Dachau on the 29th and finally Mauthausen on 4 May. Slaughtered SS members Fierce resistance
Allied troops overran Nazi positions in 1945 and liberated the camps through direct military force.
Concentration camps were closed when the Allies liberated them. In some cases, such as Sobibor, the Germans destroyed the camps and planted flowers or trees to make it look nice.