joined the pact, and prepared to fulfil its part in the conflict upon the Baltic. But the task was a difficult one, for Grenville's Ministry had dispersed the fleet of transports; and, although Canning determined upon the Baltic expedition in April, two months passed before the fleet was ready to sail. [Summer campaign in East Prussia, 1807.] [Battle of Friedland.] In the meantime army upon army was moving to the support of Napoleon, from France, from Spain, from Holland, and from Southern Germany. The fortresses of the Elbe and the Oder, which ought to have been his barrier, had become his base of operations; and so enormous were the forces at his command, that, after manning every stronghold in Central Europe, he was able at the beginning of June to bring 140,000 men into the field beyond the Vistula. The Russians had also received reinforcements, but Bennigsen's army was still weaker than that of the enemy. It was Bennigsen, nevertheless, who began the attack; and now, as in the winter campaign, he attempted to surprise and crush the northern corps of Ney. The same general movement of the French army followed as in January. The Russian commander, outnumbered by the French, retired to his fortified camp at Heilsberg. After sustaining a bloody repulse in an attack upon this position, Napoleon drew Bennigsen from his lair by marching straight upon Königsberg. Bennigsen supposed himself to be in time to deal with an isolated corps; he found himself face to face with the whole forces of the enemy at Friedland, accepted battle, and was unable to save his army from a severe and decisive defeat (June 14). The victory of Friedland brought the French into Königsberg. Bennigsen retired behind the Niemen; and on the 19th of June an armistice closed the operations of the hostile forces upon the frontiers of Russia. [139] The situation of Bennigsen's army was by no means desperate. His men had not been surrounded; they had lost scarcely any prisoners; they felt no fear of the French. But the general exaggerated the seriousness of his defeat. Like most of his officers, he was weary of the war, and felt no sympathy with the motives which led the Emperor to fight for the common cause of Europe. The politicians who surrounded Alexander urged him to withdraw Russia from a conflict in which she had nothing to gain. The Emperor wavered. The tardiness of Great Britain, the continued neutrality of Austria, cast a doubt upon the wisdom of his own disinterestedness; and he determined to meet Napoleon, and ascertain the terms on which Russia might be reconciled to the master of half the Continent. [Interview of Napoleon and Alexander at Tilsit, June 25.]