... after, that by the fall of Fort Donelson the way was opened to the forces of the North all over the south-west without much resistance, that a vigorous commander, disposing of all the troops west of the Alleghanies , might have at once marched to Chattanooga, Corinth, Memphis, and Vicksburg, and broken down every resistance. There was no such commander, and time was given to the enemy to collect armies and for...