# Spy {% hint style="info" %} Spies can be used to find out the status of buildings/number of troops in your opponent's city. To prevent enemies from spying on your city, make sure you have a large number of spies with increased defense capabilities to kill the enemy spies. You can train spies in the barracks after they are researched in the Academy. Note: The spies' attack power in raid, battle, and siege mode is 0. However, in spy mode, it is 35. {% endhint %}