Learn how to annex a vassal in Europa Universalis 5 and the benefits of the process to help you build your empire.

Annexation in Europa Universalis 5 is the art of expanding your nation by incorporating a new territory. Although annexing a vassal is a time-consuming process, it is fruitful. This process serves its own benefit, giving you complete control over a country’s trade, supply processes, and workforce.
In this article, we will explore how to annex a vassal in Europa Universalis 5.
Annex a Vassal in Europa Universalis 5
Vassals are a type of extension to the empire you are creating. These are those countries that aren’t part of your province, yet have sworn strong alliances with you. Creating a vassal will help create strong ties and deal with important issues.
Annexing as a process require a considerably long time, considering the decades of in-game time some could take. The larger the province and the higher the population, the more time-consuming the process. If you feel small provinces could be dealt with faster, think again. There are, however, a few things you could do to make a significant difference in the speed.
- Steadily improve the ‘diplomatic reputation’ and ‘government laws’ using different advancements or policies.
- Maintain a high loyalty towards subjects.
- Focus on smaller vassals for quicker results.
- Plan for annexations during peaceful times rather than during a war situation.
How To Annex a Vassal

Before starting the process of annexation, make sure the following conditions are met.
- The vassal must have been under your control for at least 10 years.
- The vassal’s opinion about you must be higher than 150.
Here are the steps to annex a vassal in Europa Universalis 5.
- Firstly, right-click their nation on your map.
- Select the ‘Diplomacy’ option.
- Choose ‘Subject Actions’ and click on ‘Start Annexation’.
You don’t always need to annex a vassal and, rather, can, for a change, let them yield some results for you. Vassals have the ability to manage cultures as well as raise levies to increase your country’s capital. Only make the decision of annexing once you feel the need for complete control over trade and manpower.
Also read: Europa Universalis 5 (EU5): Fiefdom vs Vassal Explained

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