This command will change the corruption of a specified country to the specified amount. Note that this does not add the specified amount of corruption to a country - it sets the corruption to the number entered.
corrupt [corruption value] [country tag]
|Corruption Value||The amount of corruption you wish to set for the target country - note that this will set the country's corruption to this value, not add this to the existing amount.|
|Country Tag||Optional. The tag of the country you wish to change the amount of corruption within. If this is not specified, the country you are currently playing as will be affected.|
The above command would set the corruption amount in your current country to 1.
corrupt 5 NED
Netherlands has a country tag of NED, this command would set the corruption amount in Netherlands to 5. See all country tags.