Napoleon remained at Elba ten months, when he escaped, landed at Cannes, Mar. 1, 1815, raised an army in France as if by magic, and entered Paris at its head, Mar. 20.
The people seemed glad to be rid of Louis XVIII., who fled at midnight, Mar. 19. Napoleon said, with much truth, "The Bourbons, during their exile, had learned nothing, and forgotten nothing." The Grand Army joyously received their leader. The people shouted themselves hoarse. They wept, and sang songs of thanksgiving. Paris was brilliant with illuminations. When he reached the Tuileries, he was seized and borne aloft above the heads of the throng. The ladies of the court, says Alison, "received him with transports, and imprinted fervent kisses on his cheeks, his hands, and even his dress. Never was such a scene witnessed in history." Hortense and her two children were at the Tuileries to welcome Napoleon.
The allies cared little whom France wished to rule her. They preferred the conservative Bourbons or indeed anybody who would not disturb the so-called balance of power in Europe. They at once banded themselves together, England, Austria, Russia, Prussia, Portugal, Spain, and Sweden, to crush this "enemy and disturber of the world."
A million men were soon raised by the allies, and Napoleon brought together over 200,000. He decided at once to take the offensive rather than let the allies invade France. He left Paris for Belgium, June 12, 1815, taking with him about 120,000 men. He drove the Prussians out of Charleroi, and on June 16 gained a victory over the Prussian marshal, Blücher, at Ligny. Jomini, who is usually authentic, says Napoleon had 72,000 in the battle, and Blücher from 80,000 to 90,000. It was a hotly contested battle-field in which the Prussians lost from 12,000 to 20,000 men. Thiers says 30,000.
Blücher had his gray charger, given him by the Prince Regent of England, shot under him, and was nearly killed in the retreat.
The same day occurred the desperate battle of Quatre-Bras, in which Marshal Ney was defeated.
On June 18, 1815, the decisive battle of Waterloo was fought, nine miles south-east of Brussels. Napoleon's forces, according to Jomini and Thiers, were 70,000 in number; Seeley and Ropes say 72,000. Wellington had about 68,000.
The ground was so drenched by rains that the battle was not begun till a little past eleven. Both sides fought desperately. Blücher, a few miles to the right of Wellington, at Wavre, had promised to join him. Napoleon had told Marshal Grouchy to follow the Prussians and thus prevent their union with the English. He started too late for Wavre; he did not take the advice of some of his officers to hasten to Napoleon when they heard the sound of battle, and his 33,000 men failed to help at Waterloo. Ropes gives an interesting account of this in the Atlantic Monthly, June, 1881, "Who lost Waterloo?"
All day long the battle raged. Hand to hand combats were constant. The battle seemed in favor of the French. Meantime Blücher was coming from Wavre, with his guns sinking axle-deep in the mud. "We shall never get on," was heard on all sides. "We must get on," said the bluff Blücher; "I have given my word to Wellington."