Insignia of the 11th Armored Division. "Thunderbolt" is a nickname adopted by the 11th Armored Division during its rapid march in December 1944 to reinforce US troops defending against the German military offensive in the Ardennes Forest. Photograph »

Victims of starvation are removed after US troops liberated Gusen, a subcamp of the Mauthausen concentration camp. Austria, May 12, 1945. Photograph »

Corpses found when UStroops liberated the Gusen camp, a subcamp of the Mauthausen concentration camp. Austria, after May 12, 1945. Photograph »

An emaciated survivor wrapped in a blanket sits up on a stretcher in the newly liberated Gusen concentration camp. Gusen, Austria, between May 5 and May 15, 1945. Photograph »

Austrian civilians prepare mass graves to bury former inmates in the Gusen concentration camp after American forces liberated the camp. Gusen, Austria, between May 5 and May 15, 1945. Photograph »