The Nazis established total control over Germany between 1933-1945 through organizations like the SS and Gestapo, concentration camps, and propaganda. The SS was formed in 1925 to destroy opposition to Nazism and carry out racial policies. The Gestapo was feared as they could arrest citizens without trial. Concentration camps held political opponents where they faced forced labor, starvation, and execution. Through terror, propaganda, and restoring economic stability, the Nazis eliminated opposition and maintained power over the German populace.