the Office of Strategic Services (OSS)

The Office of Strategic Services (OSS) was a secret U.S. intelligence agency during World War II, functioning from 1942 to 1945. It gathered intelligence, conducted espionage, and supported covert operations to help allies defeat the Axis powers. The OSS also worked on psychological warfare and sabotage behind enemy lines. Many of its methods and personnel laid the groundwork for the CIA, which was established later. Overall, the OSS played a crucial role in providing strategic information and conducting clandestine activities to enhance U.S. wartime efforts.