...wn, to the rear of Lee's army, which was now some miles to the northeast of that town in the Cumberland valley. At this juncture of affairs, Hooker demanded that the 10,000 men, left in garrison at Harper's Ferry , should join his command in the field. This brought on an issue with his government, which resulted in his displacement and the putting of Gen. George Meade in command of the army of the Potomac, o...