...ounties on the left and right, and the northern counties of East-Tennessee, were too poor to support the army one day. With a vastly superior force attacking, the movement to the Cumberland River, at Gainsboro , a point of supply, was precipitated, and to this Gen. Crittenden is moving with short days' marches. From this point, if the enemy should advance into East-Tennessee, an attack could be made on hi...