The battle of Molwitz was the signal for a general explosion throughout Europe. Bavaria took up arms. France, not yet declaring herself a principal in the war, took part in it as an ally of Bavaria. The two great statesmen to whom mankind had owed many years of tranquillity, disappeared about this time from the scene, but not till they had both been guilty of the weakness of sacrificing their sense of justice and their love of peace to the vain hope of preserving their power. Fleury, sinking under age and infirmity, was borne down by the impetuosity of Belle-Isle. Walpole retired from the service of his ungrateful country to his woods and paintings at Houghton; and his power devolved on the daring and eccentric Carteret. As were the ministers, so were the nations. Thirty years during which Europe had, with few interruptions, enjoyed repose, had prepared the public mind for great military efforts. A new generation had grown up, which could not remember the siege of Turin or the slaughter of Malplaquet; which knew war by nothing but its trophies; and which, while it looked with pride on the tapestries at Blenheim, or the statue in the Place of Victories, little thought by what privations, by what waste of private fortunes, by how many bitter tears, conquests must be purchased. For a time fortune seemed adverse to the Queen of Hungary. Frederic invaded Moravia. The French and Bavarians penetrated into Bohemia, and were there joined by the Saxons. Prague was taken. The Elector of Bavaria was raised by the suffrages of his colleagues to the Imperial throne, a throne which the practice of centuries had almost entitled the House of Austria to regard as a hereditary possession.