The Office of Secret Actions (OSA) is a Allied clandestine government agency headquartered in Utopia City, Pol Earth. It is dedicated to dealing with top secret missions and operations for Allied Joint Members. B.J. Blazkowicz and Nova Terra are members of the OSA, and their most prestigious agent. The OSA is also part of the Great Serethan-Allied War, where they responsible for the Execution of the Deleathan Empire.