 The lack of central authority and effective transportation infrastructure, especially the railroads, combined the frequent unwillingness or inability of Southern state governments to provide adequate funding, were key factors in the Army's demise.Individual commanders had to "beg, borrow or steal" food and ammunition from whatever sources were available, including captured Union depots and encampments, and private citizens regardless of their loyalties.Lee's campaign against Gettysburg and southern Pennsylvania (a rich agricultural region) was driven in part by his desperate need of supplies, namely food.