He did move, and was successful from the start.

This was on the 15th of December.

General Logan was at Louisville at the time this movement was made, and telegraphed the fact to Washington, and proceeded no farther himself.
The battle during the 15th was severe, but favorable to the Union troops, and continued until night closed in upon the combat.

The next day the battle was renewed.

After a successful assault upon Hood's men in their intrenchments the enemy fled in disorder, routed and broken, leaving their dead, their artillery and small arms in great numbers on the field, besides the wounded that were captured.