burn with passionate hatred of each other.

We may see from this what a fallacy it would be to refer the War of
a civilised nation entirely to an intelligent act on the part of the
Government, and to imagine it as continually freeing itself more and
more from all feeling of passion in such a way that at last the physical
masses of combatants would no longer be required; in reality, their mere
relations would suffice--a kind of algebraic action.

Theory was beginning to drift in this direction until the facts of the
last War(*) taught it better. If War is an ACT of force, it belongs
necessarily also to the feelings. If it does not originate in the
feelings, it REACTS, more or less, upon them, and the extent of this
reaction depends not on the degree of civilisation, but upon the
importance and duration of the interests involved.

(*) Clausewitz alludes here to the "Wars of Liberation,"
1813,14,15.

Therefore, if we find civilised nations do not put their prisoners
to death, do not devastate towns and countries, this is because their
intelligence exercises greater influence on their mode of carrying on
War, and has taught them more effectual means of applying force than
these rude acts of mere instinct. The invention of gunpowder, the
constant progress of improvements in the construction of firearms, are
sufficient proofs that the tendency to destroy the adversary which lies
at the bottom of the conception of War is in no way changed or modified
through the progress of civilisation.

We therefore repeat our proposition, that War is an act of violence