Who ran a secret government during world war 2?

During World War II, the concept of a "secret government" can refer to various clandestine operations and organizations, such as the Office of Strategic Services (OSS) in the United States or the British Special Operations Executive (SOE). These groups operated in secrecy to conduct espionage, sabotage, and support resistance movements against Axis powers. Additionally, the Nazi regime in Germany had its own covert operations and intelligence services, including the Sicherheitsdienst (SD), which worked to suppress dissent and gather intelligence.