... Early in April, 1863, Hooker, in command of the Army of the Potomac, became impatient, and resolved to put it in motion towards Richmond, notwithstanding his ranks were not full. Cavalry under Stoneman were sent to destroy railways in Lee's rear, but were foiled by the water in the streams. After a pause, Hooker determined to attempt to turn Lee's flank, and, for that purpose, sent 10,000 mounted...