The following is a list of espionage missions that may be performed (note that most missions become available after you have researched Espionage): Establish Embassy - Attempts to establish an embassy with the currently selected Civilization. Plant Spy - This option attempts to plant a spy with the currently selected Civilization. Steal Technology - This option attempts to Steal a Technology from the currently selected Civilization. Steal Military Plans - Use a spy to steal military plans of a rival, which reveals the locations of all their military units. Initiate Propaganda - Initiate propaganda against the city where the spy resides. If successful, the people will revolt and defect to your side. Expose Enemy Spy - If you suspect a rival has planted a spy in one of your cities you can attempt to expose the intruder. Investigate City - This option attempts to Investigate a City belonging to the currently selected Civilization. Steal World Map - Use a spy to steal a world map from a rival. Sabotage Production - Use a spy to destroy all the shields in the production box of a rival city.