Regent Kingdom of Prussia

The Regent Kingdom of Prussia, also known as the Second Kingdom of Prussia, or Kingdom of Teutonia, was a temporary government formed out of the collapse of the Weimar Republic that took almost all of its eastern territory. Formed by Lyev Ehrenfeld, the Regent Kingdom later became the German Union, which is now the Teutonic Union.

Creation of the Regent Kingdom
Formed by Lyev Ehrenfeld and a council of other pro-monarchist and reunification activists to push for a newly formed German government. With help from many veterans from the World War, the government was able to setup one of the most specialized and advanced militarys out of the warring states.

German Civil War
During the German Civil War, Prussia started the war with more than just the support of the people but the support of the former High Command of the Imperial German Army and Royal Prussian Army. They started off slow, but after pushing through Saxony into North Germany, they had unified the old lands of the Prussian Kingdom of 1850. Prussia then declared war on Bavaria, and after taking over Saxony from them, and pressing through eastern Bavaria to connect their lines to their ally, Austria. They were the first nation to weaponize the agricultural walkers.

Unification
The Prussians, after the crushing defeat of the Bavarians at the Second Battle of Dresden, found themselves in a close bond with their Austrian Allies. Lyev Ehrenfeld negotiated a union of the two states, at least until the end of the war. The then formed German Union took the lands from both Prussia, and Austria, forming it into one superpower.