Danubia, Officially the Union of Danubian Republics is a country in Central Europe, lying mainly between the Alps, Sudeten Mountains, and Carpathian Mountains. It is a Federation of 12 republics and one capital territory, which is the most populous city, with the most populous state being Hungary. Danubia is bordered by Germany to the northwest, Poland to the north, Ukraine to the northeast, Romania to the east, Serbia and Croatia to the south, Italy to the southwest, and Switzerland and Liechtenstein to the west. The country occupies an area of 574,000 sq. kilometers (221,598 sq. miles)
I used Unter dem Doppeladler because I didn't have anything better. If you have something better tell me. Also It could also just be renamed for Danubia.