before dawn on march 29, warren's v corps moved west of the union and confederate lines while sheridan's cavalry took a longer, more southerly route toward dinwiddie court house and humphrey's ii corps filled in the gap between the existing end of the union line and the new position of warren's corps. warren's corps led by the first brigade of griffin's first division under the command of brigadier general joshua chamberlain proceeded up the quaker road toward its intersection with the boydton plank road and the confederates' nearby white oak road line.