
Those who spoke out against Hitler and his policies faced intimidation and threats from the Gestapo [Gestapo: (Secret State Police.) A ruthless organisation that aimed to eliminate political opponents in Nazi Germany, and was responsible for the rounding up of Jews during the Nazi period and attempting to exterminate them. ], or imprisonment and in some cases execution. However, there were some brave individuals and groups who openly opposed Hitler and his policies - a few survived, but many were killed.
It was difficult - and dangerous - to oppose Hitler. However, some brave people did try:

Hitler surveys the damage from the bomb planted by the Kreisau Circle