Brandenburg-Prussia Catholic armies swept the land back and forth, killing, burning, seizing men and taking the food supplies. Upwards of half the population was killed or dislocated. Berlin and the other major cities were in ruins, and recovery took decades. By the Peace of Westphalia, which ended the Thirty Years' War in 1648, Brandenburg gained Minden and Halberstadt, also the succession in Farther Pomerania (incorporated in 1653) and the Duchy of Magdeburg (incorporated in 1680). With the Treaty of Bromberg (1657), concluded during the Second Northern War, the electors were freed of Polish vassalage for the Duchy of Prussia and gained
Treaty establishing the European Defence Community Plan (1959–1962). European foreign policy was finally established during the third attempt with European Political Cooperation (EPC) (1970). This became the predecessor of the Common Foreign and Security Policy (CFSP). Today the European Union and NATO, and formerly also the Western European Union, all carry out some of the functions which was envisaged for the EDC, although none approach the degree of supranational military control that the EDC would have provided for. Treaty establishing the European Defence Community The Treaty establishing the European Defence Community, also known as the Treaty of Paris, is an unratified treaty signed on 27 May