The Wealth of Nations_ Books 4-5 - Adam Smith [38]
The commodities most proper for being transported to distant countries, in order to purchase there either the pay and provisions of an army, or some part of the money of the mercantile republic to be employed in purchasing them, seem to be the finer and more improved manufactures; such as contain a great value in a small bulk, and can, therefore, be exported to a great distance at little expense. A country whose industry produces a great annual surplus of such manufactures, which are usually exported to foreign countries, may carry on for many years a very expensive foreign war without either exporting any considerable quantity of gold and silver, or even having any such quantity to export. A considerable part of the annual surplus of its manufactures must, indeed, in this case be exported without bringing back any returns to the country, though it does to the merchant; the government purchasing of the merchant his bills upon foreign countries, in order to purchase there the pay and provisions of an army. Some part of this surplus, however, may still continue to bring back a return. The manufacturers, during the war, will have a double demand upon them, and be called upon, first, to work up goods to be sent abroad, for paying the bills drawn upon foreign countries for the pay and provisions of the army; and, secondly, to work up such as are necessary for purchasing the common returns that had usually been consumed in the country. In the midst of the most destructive foreign war, therefore, the greater part of manufactures may frequently flourish greatly; and, on the contrary, they may decline on the return of the peace. They may flourish amidst the ruin of their country, and begin to decay upon the return of its prosperity. The different state of many different branches of the British manufactures during the late war, and for some time after the peace, may serve as an illustration of what has been just now said.
No foreign war of great expense or duration could conveniently be carried on by the exportation of the rude produce of the soil. The expense of sending such a quantity of it to a foreign country as might purchase the pay and provisions of an army would be too great. Few countries produce much more rude produce than what is sufficient for the subsistence of their own inhabitants. To send abroad any great quantity of it, therefore, would be to send abroad a part of the necessary subsistence of the people. It is otherwise with the exportation of manufactures. The maintenance of the people employed in them is kept at home, and only the surplus part of their work is exported. Mr Hume frequently takes notice of the inability of the ancient kings