Despite the careful planning and intensive training (by Civil War standards), on the day before the attack, Meade, who lacked confidence in the operation, ordered Burnside not to use the black troops in the lead assault. He claimed that if the attack failed, black soldiers would be killed needlessly, creating political repercussions in the North. Meade may have also ordered the change of plans because he lacked confidence in the black soldiers' abilities in combat.[7] Burnside protested to Grant, who sided with Meade.