The Kingdom of God is Within You by Leo Tolstoy Chapter 6 Page 56

For twenty years past every resource of science has been exhausted in the invention of engines of destruction, and soon a few charges of cannon will suffice to annihilate a whole army. No longer a few thousands of poor devils, who were paid a price for their blood, are kept under arms, but whole nations are under arms to cut each other's throats. They are robbed of their time now (by compulsory service) that they may be robbed of their lives later. To prepare them for the work of massacre, their hatred is kindled by persuading them that they are hated.

And peaceable men let themselves be played on thus and go and fall on one another with the ferocity of wild beasts; furious troops of peaceful citizens taking up arms at an empty word of command, for some ridiculous question of frontiers or colonial trade interests