THE WARS OF FREDERICK THE GREAT was to re-create the army, which had sunk to the condition of a disorderly and ineffective rabble. So successful was he in this task that when the Peace of Westphalia came to be concluded, he was able to speak with authority, and to emerge from the conference bringing with him a fresh batch of bishoprics and also the province of Eastern Pornerania (recovered from the Swedes), which went a long way towards filling up the gap between his German margravate and his Polish dukedom. The remaining forty years of his electorate (1648-88) were spent in unremitting toil for the aggrandisement of Brandenburg-Prussia. He had no regard for Germany as a whole; no conception of Europe or of Humanity. On behalf of Brandenburg- Prussia he was ready to use all the force at his dis- posal. He was also equally ready on her behalf either to make or to break treaties. Thus by intervening in a war which took place between Poland and Sweden (A.D. 1655-60), and by alter- nately supporting and deserting both sides, he secured the emancipation of East Prussia from Polish suzerainty. Further, as the result of much negotiation and a considerable show of force, he was able in A.D. 1666 to establish secure possession of the Rhenish territories of Cleves, Mark, and Ravensberg to which the Hohenzollern had been making claims, by right of inheritance, for more than half a century.