It was not long before the full horrors of the Nazi regime became apparent. On 4 April American troops entered Ohrdruf concentration camp, part of Buchenwald, to find apathetic, skeletal figures surrounded by unburied corpses. Eisenhower was so appalled that he ordered soldiers to visit the camp, and brought in war correspondents to witness the sight. Some of the guards had tried to disguise themselves, but when they were pointed out by prisoners Allied troops shot them on the spot. Other guards had already been killed by prisoners, but few had the strength.