of that species of warfare; and the inhuman cruelties incidentally suffered by Union prisoners.
It is true that the slavery question was a very powerful factor in our Civil War, and became more and more so as the war progressed.
But opinion on that question at the North
was very far from unanimous at the first, and it is a fair and important question how far the growth of sentiment in the free States in favor of emancipation was due to the slaveholders' method of carrying on war.
My desire here is to refer to these questions solely from the military point of view, and for the consideration of military students.
The conditions upon which depends success or failure in war are so many,—some of them being more or less obscure,—that careful study of all such conditions is demanded of those who aspire to become military leaders.