...tes Army, made his appearance in Northern Virginia, between the Rappahannock and Rapidan Rivers, at the head of an army called the Army of Virginia, and composed of the corps of McDowell, Banks, and Fremont , the latter being then under Sigel. General Pope issued a vain-glorious address to his troops, in which he declared that he had never seen anything of the rebels but their backs; and he talked lar...