The German Empire(837 A.D-1495) was a leading power in Europe during the Middle Ages, controlling an area from the borders of France to Russia. It was the leading technological power for 400 years, before the British surpassed them. The empire would see its fall thanks to over-expansion, the unification of Great Britain and its policies after, and a growing hatred of the monarchs within the common man.
837-900 A.D: Unification and GrowthIn the year of 837 A.D, the Duchy of Berlin had defeated the Duchy of Bonn in a year-long siege. It declared itself the German Empire, and declared the Duke of Berlin, Kristopyf IV, the first emperor. It immediately began attacking other duchies in Austria and Poland, because the only other state that had unified by now was the Kingdom of France, which had been doing the same thing with no rivals in the way. As tensions heightened between the two, France invaded the Swiss Duchies, allies of Germany. In return, Germany invaded the Dutch Duchies, allies of France. The two nations wrote up the Treaty of Munich, which allowed them to keep the territory they had just taken. This led to the Duchy Rebellion, which was an uprising against France and Germany led by the former dukes.
It was quickly suppressed by the two, who had allied together to quell the rebellion, but things went back to rivalry quickly, as Germany began raids of French colonists in England, in conjunction with native tribes. This led to the German-French War, where Germany obtained the French settlement in England, and a few territories on the outskirts of France. This led to the view that Germany was now the main power in Western Europe, but this title quickly went away after the embarrassing German-Italic War, where the recently unified Kingdom of Italy fended of Germany's main invasion forces, suffering no more then 50 troops in a army of 5,000, while Germany lost half of its 20,000 Army.
900-1000: Revival of the Black Eagle
After the war, Germany built a new army as more kingdoms were unified, like Spain, Portugal, and Romania. Romania started a policy which was comparable to early France and Germany, and attacked duchies in Czechoslovakia, Ukraine, and Hungary, and allying with the ones in the Baltic Region, which was the last path for expansion for Germany. The emperor hesitantly ordered the invasion of the Baltic Duchies, which were conquered within 13 days by a skilled general known as Wilhelm Kraieg. With Romania ordering the evacuation of the Baltic Duchies, the emperor ordered Wilhelm to invade the Czechoslovakia region. With several victories, Wilhelm got closer and closer to the borders of Romania proper. The Kingdom of Romania made peace with the Germans and wrote up the Treaty of Prague in 937 A.D, which gave control of 1/4 of Czechoslovakia to Germany, right to build forts in the rest of the region, and a military base in Bratislava and Budapest. The Germans accepted this, and regained some prestige with their victory. Wilhelm went on to conquer many Russian and Scandinavian Duchies, but died of Cancer in 950 A.D. His son, Erwin Kraieg, went on to become his replacement, and suggested the invasion of the neighboring Kingdom of Muscovy, which was being invaded by the Huang Empire, Kingdom of Afghan, Kingdom of Caucasia, and even the Kingdom of Romania. Huang and Afghan were in an alliance with each other, so Erwin suggested a partnership with Romania in the invasion to counter the other. The emperor approved, and the German invasion began in 1000 A.D.