Note 2 — Chapter XIII

Agriculture is not essentially pacific; in various stages of historical development agricultural nations war upon each other in order to secure more land or to levy tribute of grain. The pacific tendency of our present agricultural development arises out of the needs of industrial Europe. Our agricultural progress, however, is peaceful only in so far as it increases the product of our fields; it would not be peaceful, and might be the exact reverse, if we sought to increase our acreage by, let us say, a conquest of Canada.