The reader will probably have been struck during the narrative of the American campaign of 1758 with the inferiority of the French in numbers to the British at every point. The French colonies were in fact allowed to take their chance, while French soldiers were poured by the hundred thousand into Germany to avenge King Frederick's sarcasm against Madame de Pompadour. A Pitt was hardly needed to perceive that the more employment that could be found for French armies in Europe, the fewer were the men which could be spared for the service of France's possessions beyond sea; and Pitt resolved accordingly to keep those armies fully occupied. By the convention of Klosterzeven, as has already been told, it was agreed that the Hanoverian army should be broken up; but even before Cumberland's return to England, the question of repudiating that convention had been broached, and a fortnight later a message was despatched to Frederick announcing that the army would take the field again, and requesting the services of Prince Ferdinand of Brunswick as General-in-Chief. Frederick assented; and on the 24th of November Ferdinand arrived at Stade, fresh from the victory of Rossbach in which he had taken part three weeks before, to assume the command. The whole aspect of affairs changed instantly, as if by magic. Setting his force in motion at once Ferdinand by the end of the year had driven the French back to the Aller, and renewing operations after six weeks spent in winter-quarters pressed the enemy still farther back, even across the Rhine. [Sidenote: June 5.] [Sidenote: June 7.] [Sidenote: June 29.] [Sidenote: July 1.]