What is the real guarantee of the good behavior of one State to another? It is the elaborate interdependence which, not only in the economic sense, but in every sense, makes an unwarrantable aggression of one State upon another react upon the interests of the aggressor. Switzerland has every interest in affording an absolutely secure asylum to British subjects; that fact, and not the might of the British Empire, gives protection to British subjects in Switzerland. Where, indeed, the British subject has to depend upon the force of his Government for protection it is a very frail protection indeed, because in practice the use of that force is so cumbersome, so difficult, so costly, that any other means are to be preferred to it. When the traveller in Greece had to depend upon British arms, great as was relatively the force of those arms, it proved but a very frail protection. In the same way, when physical force was used to impose on the South American and Central American States the observance of their financial obligations, such efforts failed utterly and miserably--so miserably that Great Britain finally surrendered any attempt at such enforcement. What other means have succeeded? The bringing of those countries under the influence of the great economic currents of our time, so that now property is infinitely more secure in Argentina than it was when British gunboats were bombarding her ports. More and more in international relationship is the purely economic motive--and the economic motive is only one of several possible ones--being employed to replace the use of physical force. Austria, the other day, was untouched by any threat of the employment of the Turkish army when the annexation of Bosnia and Herzegovina was consummated, but when the Turkish population enforced a very successful commercial boycott of Austrian goods and Austrian ships, Austrian merchants and public opinion made it quickly plain to the Austrian Government that pressure of this nature could not be disregarded. I anticipate the plea that while the elaborate interconnection of economic relations renders the employment of force as between nations unnecessary in so far as their material interests are concerned, those forces cannot cover a case of aggression upon what may be termed the moral property of nations. A critic of the first edition of this book[105] writes: