Brandenburg, officially the State of Brandenburg, is a state in northeastern Germany. Brandenburg borders the states of Mecklenburg-Vorpommern, Lower Saxony, Saxony-Anhalt, and Saxony, as well as the country of Poland. With an area of 29,480 square kilometres and a population of 2.5 million residents, it is the fifth-largest German state by area and the tenth-most populous. Potsdam is the state capital and largest city, and other major towns are Cottbus, Brandenburg an der Havel and Frankfurt (Oder).

Mecklenburg-Vorpommern ; also known by its anglicized name Mecklenburg–Western Pomerania, is a state in the north-east of Germany. Of the country's sixteen states, Mecklenburg-Vorpommern ranks 14th in population; it covers an area of 23,300 km2 (9,000 sq mi), making it the sixth largest German state in area; and it is 16th in population density. Schwerin is the state capital and Rostock is the largest city. Other major cities include Neubrandenburg, Stralsund, Greifswald, Wismar, and Güstrow. It was named after the two regions of Mecklenburg and Vorpommern, and its name means the "nearer part of Pomerania", with the rest now lying in Poland.