...federate army at Winchester, by — the forces under Shields and Banks, to insulate and overpower the right wing resting on the Potomac at Evansport, and to surround and crush General Johnston at Manassas , or else to force him toward Richmond, and pursue him. The army on the Peninsula, setting out from Fortress Monroe, was to press back General Magruder, and assail the capital from the East. The for...