EU4 form_union Console Command

Documentation and detailed help with working examples.
form_union Command
PlayerDLC: None

This command will form a union with the target country.

form_union [Country Tag] [Country Tag]


The tag of the country you want to form a union with.


The tag of the country that will form a union with the target. If not specified, this will be your country.

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Quick Overview

The form_union command in Europa Universalis IV is used to form a personal union with another country of your choice.

This command effectively makes the targeted country part of your domain, although it can still act somewhat independently.

In-Depth Description

The form_union command in Europa Universalis IV is a console command that allows the player to form a personal union with a target country.

When you type form_union [target country tag], the game will first check if the targeted country is a Christian monarchy.

If it is, then a personal union is formed between your country and the target nation. A personal union in EU4 means that the two countries share the same ruler, but maintain separate local governments and military structures.

It's effectively one step short of an outright annexation.

The 'form_union` command can be beneficial in a multitude of ways.

For instance, it can be used to unify your country with a powerful nation without going through the process of a war or diplomatic annexation. This allows you to access the resources and manpower of another country without needing to maintain direct control over it.

However, you should use this command cautiously. In a personal union, the junior partner (the country that was targeted by your command) maintains a sense of independence.

If your country's stability falls or your ruler becomes unpopular, they may seek to break the union and regain their independence. This could lead to a civil war or other dangerous situation.

How to Open the Command Console

In EU4, cheats are executed from the command console, a text box that you type commands into.

To open the command console press the ~(tilde) key, which is typically located under ESC (escape).

If your keyboard does not have that key, or pressing ~ does not work, try the following keys:

  • ~
  • SHIFT + 2
  • SHIFT + 3
  • ALT + 2 + 1

Type your command into the console, and then press ENTER .