Towards that country Napoleon soon bent his steps, taking, as he went, assistance from Poland, which he promised to restore to independence. After a series of skirmishes and battles of lesser importance, he met the Russian army in great strength (June 14, 1807), at Friedland, and gave it a total overthrow. He might now have easily reduced the whole country, as he had done Austria and Prussia; but he contented himself with forming a treaty (called the treaty of Tilsit, from the place where it was entered into), by which Russia agreed to become an ally of France, and entered into his views for the embarrassment of Britain by the exclusion of her commerce from the continental ports. France had thus, in the course of a few years, disarmed the whole of Europe, excepting Great Britain, an amount of military triumph for which there was no precedent in ancient or modern history. The Grenville administration was displaced in the spring of 1807, in consequence of the difference between its members and the king on the subject of the Catholic claims, which had long been urged by the Whig party, with little support from the people. The next ministry was headed by the Duke of Portland, and included Lords Hawkesbury and Castlereagh (afterwards Earl of Liverpool and Marquis of Londonderry), and Mr. Canning, as secretaries; Mr. Spencer Perceval being chancellor of the exchequer. After being accustomed to the services of such men as Pitt and Fox, the people regarded this cabinet as one possessing comparatively little ability. One of its first acts was the despatch of a naval armament to Copenhagen to seize and bring away the Danish shipping, which was expected to be immediately employed in subserviency to the designs of France, and for the injury of Britain. The end of the expedition was very easily obtained; but it was the means of lowering the honor of Britain in the estimation of foreign powers. FIRST PENINSULAR CAMPAIGN――SUBSEQUENT EVENTS.