Mod «United States Of Poland» for Hearts of Iron 4 (v1.7.1)
United States Of Poland is a modification that is great for co-op with friends on multiplayer, but you can also play it on singleplayer. This mod divides Poland into 4 countries: Lesser Poland, Greater Poland, Vilnius and the Eastern Borderlands referring to real.
Mod checked on game version: 1.7.1
How to install mod?
To install the mod for the game Hearts of Iron 4, unpack the contents of the archive to the folder Documents\Paradox Interactive\Hearts of Iron IV\mod and enable the modification in the launcher.