The operations in Kentucky and Tennessee, though smaller in themselves, were of much greater importance. Those states lay within the strategic field. Kentucky had officially assumed an attitude of neutrality, as has already been related, to which neither side paid or could be expected to pay the smallest attention. That state lay between the North and the South. It was absolutely necessary that each should push armed forces into and across its domain in order to get at the forces of the adversary. Moreover, Kentucky's assumption of neutrality was a transparent absurdity in itself. If it could have commanded respect, it would have interposed a neutral ground, stretching for about four hundred miles from east to west between the contending armies, neither of which would have been privileged on any account to cross it or to enter it. Thus Kentucky, while retaining its place as a state in the Union, would have stood as a protective barrier to the seceding states, of even greater value than all the armies that could have been assembled within Kentucky's borders. It would at one and the same time have held the position of a state in the Union and the most potent of all states in aid of the Confederacy. It is necessary to explain that this Kentucky resolution of neutrality never had the complete legal sanction of the state authorities, actual or pretended; but its effect was so small that it is scarcely worth while to discuss the technicalities. The simple fact was that Kentucky furnished men to both sides and that its legislative and its executive authorities were never at any time fully and legally agreed upon any policy whatever. In a history that takes account of facts rather than of theories, of events rather than of resolutions, there seems no occasion to follow this subject further, except to say that both Federals and Confederates presently pushed their armies into Kentucky and tried conclusions there, with results that must form the subject of future pages in this history. In Maryland the struggle ended in the adherence of the state to the Union, while a large part of its vigorous young manhood went South and enlisted in the Confederate army. It was this division of sentiment, this separation of families, this arraying of brother against brother, that constituted the tragedy of the Confederate war. In North Carolina and in Tennessee there was a strong Union sentiment among the mountaineers. It could not control either state, but it resulted in the enlistment of a large number of hardy volunteers in the Union armies, and in the organization of an efficient "underground railroad," by means of which Northern soldiers escaping from Southern prisons were aided in their journey to the North.