Europa Universalis 4: How To Form Prussia

thegamer.com:

Prussia is considered one of the best nations for military conquest in Europa Universalis 4 - possibly even the top contender! Between excellent National Ideas for an elite army and the powerful Militarization mechanic shared with only a few other countries in the game, painting the map in Prussian blue is one of the most satisfying campaigns possible for players of an aggressive bent.

Related: Europa Universalis 4: Getting Started As Sweden

Prussia doesn't exist at the start of the grand campaign in 1444, so you'll need to form them through gameplay to make use of their mighty armies. Here's how to make it happen.

Technically, any nation whose primary culture is Prussian, Pomeranian, or Saxon can form Prussia. The two primary contenders, though, are the Teutonic Order and Brandenburg, both of whom historically had a hand in the country's birth.

In order to form Prussia, your nation must have an Administrative Technology level of at least ten. This means that the earliest it's conceivably possible to create the nation is in the mid-1500s; this lines up historically, as the Duchy of Prussia was first created in 1525.

The other main requirement for creating Prussia is that your country must take part in the Reformation. Prussia cannot be formed if your state religion is Catholicism, so you'll need to convert to Protestantism or Reformed first. The best strategy is to just take the Prestige hit and switch to Protestantism the day it becomes available. Your country will benefit from the Center of Reformation that appears, and you'll be able to get a head start on building your Aspects Of Faith.

Technically, Anglican and Hussite countries can also form Prussia, but these are much less likely to be available or useful for a