...nge & Alexandria railroad crossing. Hooker had opposed Burnside's plan of campaign against Lee, and he now essayed to make trial of his own. He proposed to make a great show of having adopted Burnside 's plan, by sending Sedgwick across the Rappahannock, at and below Fredericksburg, with three army corps, thus hoping to detain Lee in front of that desolated city while he, with four other army corps...