... Meade's corps of the Federal army, the Fifth, reached Chancellorsville during the night of the 29th, and by sunset of the 30th, Hooker had there concentrated 50,000 men, while 18,000 more, under Sickles , were near at hand. Sedgwick, with his 40,000 or more, was still threatening Lee's right, below Fredericksburg; at the same time some 13,000 Federal cavalry were threatening his railway communicati...