Suggest you review the history of the Vendee's revolt against the French Revolution.
http://en.wikipedia.org/wiki/Revolt_in_the_Vend%C3%A9e#Accusation_of_genocide
Or the Sullivan Expedition ordered by George Washington during our Revolution.
http://en.wikipedia.org/wiki/Sullivan_Expedition
Or the Peninsular War.
http://books.google.com/books?id=3huwPLzjzYYC&pg=PA244&lpg=PA244&dq=peninsular+war+atrocities&source=bl&ots=ZyB6_VsdhB&sig=lH85d-fnOFBWI7RjUAXlAjTJ3EU&hl=en&ei=aoB8TqqcK8-utweJt7ls&sa=X&oi=book_result&ct=result&resnum=5&ved=0CDkQ6AEwBA#v=onepage&q=peninsular%20war%20atrocities&f=false
I am aware of most that.
You never really give up, do you.
The fact is that the customary practice of military establishments in the 1700’s and early 1800’s when dealing with “civilized” opponents was to destroy the enemies military force. Attacking civilian centers as a matter of policy was alien to their thinking.
Sherman and Sheridan formed a DELIBERATE policy of devasting civilian centers, burning civilian homes and destroying civilian centers in an effort to undermine and destroy civilian support for the Confederate Effort.
This was, for the times, revolutionary. It set the stage for the Boer War tactics of the British and later actions in WW1 and WW2 with land and aerial attacks on non-military targets.