Merits of the Monroe Doctrine.
§ 140. The importance of the Monroe doctrine is of a political, not of a legal character. Since the Law of Nations is a law between all the civilised States as equal members of the Family of Nations, the States of the American continent are subjects of the same international rights and duties as the European States. The European States are, as far as the Law of Nations is concerned, absolutely free to acquire territory in America as elsewhere. And the same legal rules are valid concerning intervention on the part of European Powers both in American affairs and in affairs of other States. But it is evident that the Monroe doctrine, as the guiding star of the policy of the United States, is of the greatest political importance. And it ought not to be maintained that this policy is in any way inconsistent with the Law of Nations. In the interest of balance of power in the world, the United States considers it a necessity that European Powers should not acquire more territory on the American continent than they actually possess. She considers, further, her own welfare so intimately connected with that of the other American States that she thinks it necessary, in the interest of self-preservation, to watch closely the relations of these States with Europe and also the relations between these very States, and eventually to intervene in conflicts. Since every State must decide for itself whether and where vital interests of its own are at stake and whether the balance of power is endangered to its disadvantage, and since, as explained above (§ 138), intervention is therefore de facto a matter of policy, there is no legal impediment to the United States carrying out a policy in conformity with the Monroe doctrine. This policy hampers indeed the South American States, but with their growing strength it will gradually disappear. For, whenever some of these States become Great Powers themselves, they will no longer submit to the political hegemony of the United States, and the Monroe doctrine will have played its part.
VII INTERCOURSE
Grotius, II. c. 2, § 13—Vattel, II. §§ 21-26—Hall, § 13—Taylor, § 160—Bluntschli, § 381 and p. 26—Hartmann, § 15—Heffter, §§ 26 and 33—Holtzendorff in Holtzendorff, II. pp. 60-64—Gareis, § 27—Liszt, § 7—Ullmann, § 38—Bonfils, Nos. 285-289—Despagnet, No. 183—Mérignhac, I. pp. 256-257—Pradier-Fodéré, I. No. 184—Rivier, I. pp. 262-264—Nys, II. pp. 221-228—Calvo, III. §§ 1303-1305—Fiore, I. No. 370—Martens, I. § 79.
Intercourse a presupposition of International Personality.
§ 141. Many adherents of the doctrine of fundamental rights include therein also a right of intercourse of every State with all others. This right of intercourse is said to contain a right of diplomatic, commercial, postal, telegraphic intercourse, of intercourse by railway, a right of foreigners to travel and reside on the territory of every State, and the like. But if the real facts of international life are taken into consideration, it becomes at once apparent that such a fundamental right of intercourse does not exist. All the consequences which are said to follow from the right of intercourse are not at all consequences of a right, but nothing else than consequences of the fact that intercourse between the States is a condition without which a Law of Nations would not and could not exist. The civilised States make a community of States because they are knit together through their common interests and the manifold intercourse which serves these interests. Through intercourse with one another and with the growth of their common interests the Law of Nations has grown up among the civilised States. Where there is no intercourse there cannot be a community and a law for such community. A State cannot be a member of the Family of Nations and an International Person, if it has no intercourse whatever with at least one or more other States. Varied intercourse with other States is a necessity for every civilised State. The mere fact that a State is a member of the Family of Nations shows that it has various intercourse with other States, for otherwise it would never have become a member of that family. Intercourse is therefore one of the characteristics of the position of the States within the Family of Nations, and it may be maintained that intercourse is a presupposition of the international Personality of every State. But no special right or rights of intercourse between the States exist according to the Law of Nations. It is because such special rights of intercourse do not exist that the States conclude special treaties regarding matters of post, telegraphs, telephones, railways, and commerce. On the other hand, most States keep up protective duties to exclude or hamper foreign trade in the interest of their home commerce, industry, and agriculture. And although as a rule they allow[225] aliens to travel and to reside on their territory, they can expel every foreign subject according to discretion.
[225] That an alien has no right to demand to be admitted to British territory was decided in the case of Musgrove v. Chun Teeong Toy, L.R. (1891), App. Cas. 272.
Consequences of Intercourse as a Presupposition of International Personality.
§ 142. Intercourse being a presupposition of International Personality, the Law of Nations favours intercourse in every way. The whole institution of legation serves the interest of intercourse between the States, as does the consular institution. The right of legation,[226] which every full-Sovereign State undoubtedly holds, is held in the interest of intercourse, as is certainly the right of protection over citizens abroad[227] which every State possesses. The freedom of the Open Sea,[228] which has been universally recognised since the end of the first quarter of the nineteenth century, the right of every State to the passage of its merchantmen through the maritime belt[229] of all other States, and, further, freedom of navigation for the merchantmen of all nations on so-called international rivers,[230] are further examples of provisions of the Law of Nations in the interest of international intercourse.