After some man?uvring, the hostile forces met upon a wide, dreary, undulating plain, with here and there a hillock, in the vicinity of Rossbach. Frederick had twenty thousand men. The French general, Prince Soubise, had sixty thousand. The allies now felt sure of their prey. Their plan was to surround Frederick, destroy his army, and take him a prisoner. On the morning of the 5th of November the two hostile armies were nearly facing each other, a few miles west of the River Saale. A party of Austrians was sent by the general of the allies to destroy the bridges upon the river in the rear of the Prussians, that their retreat might be cut off. Frederick, from a house-top, eagerly watched the movement of his foes. To his surprise and great431 satisfaction, he soon saw the whole allied army commencing a circuitous march around his left to fall upon him in his rear.