Westlake, I. pp. 27-30—Lawrence, §§ 43 and 225—Taylor, § 133—Moore, I. § 12—Bluntschli, § 745—Heffter, § 145—Holtzendorff in Holtzendorff, II. pp. 643-646—Gareis, § 15—Liszt, § 6—Ullmann, § 27—Bonfils, Nos. 348-369—Despagnet, Nos. 137-146—Mérignhac, II. pp. 56-65—Pradier-Fodéré, II. Nos. 1001-1015—Nys, I. pp. 379-398—Rivier, I. § 7—Calvo, IV. §§ 2596-2610—Piccioni's "Essai sur la neutralité perpétuelle" (2nd ed. 1902)—Regnault, "Des effets de la neutralité perpétuelle" (1898)—Tswettcoff, "De la situation juridique des états neutralisés" (1895)—Morand in R.G. I. (1894), pp. 522-537—Hagerup in R.G. XII. (1909), pp. 577-602—Nys in R.I. 2nd Ser. II. (1900), pp. 468-583, III. (1901), p. 15—Westlake in R.I. 2nd Ser. III. (1901), pp. 389-397—Winslow in A.J. II. (1908), pp. 366-386—Wicker in A.J. V. (1911), pp. 639-654.
Conception of Neutralised States.
§ 95. A neutralised State is a State whose independence and integrity are for all the future guaranteed by an international convention of the Powers, under the condition that such State binds itself never to take up arms against any other State except for defence against attack, and never to enter into such international obligations as could indirectly drag it into war. The reason why a State asks or consents to become neutralised is that it is a weak State and does not want an active part in international politics, being exclusively devoted to peaceable developments of welfare. The reason why the Powers neutralise a weak State may be a different one in different cases. The chief reasons have been hitherto the balance of power in Europe and the interest in keeping up a weak State as a so-called Buffer-State between the territories of Great Powers.
Not to be confounded with neutralisation of States is neutralisation of parts of States,[152] of rivers, canals, and the like, which has the effect that war cannot there be made and prepared.
[152] See below, [Vol. II. § 72.]
Act and Condition of Neutralisation.
§ 96. Without thereby becoming a neutralised State, every State can conclude a treaty with another State and undertake the obligation to remain neutral if such other State enters upon war. The act through which a State becomes a neutralised State for all the future is always an international treaty of the Powers between themselves and between the State concerned, by which treaty the Powers guarantee collectively the independence and integrity of the latter State. If all the Great Powers do not take part in the treaty, those which do not take part in it must at least give their tacit consent by taking up an attitude which shows that they agree to the neutralisation, although they do not guarantee it. In guaranteeing the permanent neutrality of a State the contracting Powers enter into the obligation not to violate on their part the independence of the neutral State and to prevent other States from such violation. But the neutral State becomes, apart from the guaranty, in no way dependent upon the guarantors, and the latter gain no influence whatever over the neutral State in matters which have nothing to do with the guaranty.
The condition of the neutralisation is that the neutralised State abstains from any hostile action, and further from any international engagement which could indirectly[153] drag it into hostilities against any other State. And it follows from the neutralisation that the neutralised State can, apart from frontier regulations, neither cede a part of its territory nor acquire new parts of territory without the consent of the Powers.[154]
[153] It was, therefore, impossible for Belgium, which was a party to the treaty that neutralised Luxemburg in 1867, to take part in the guarantee of this neutralisation. See article 2 of the Treaty of London of May 11, 1867: "sous la sanction de la garantie collective des puissances signataires, à l'exception de la Belgique, qui est elle-même un état neutre."
[154] This is a much discussed and very controverted point. See Descamps, "La Neutralité de la Belgique" (1902), pp. 508-527; Fauchille in R.G. II. (1895), pp. 400-439; Westlake in R.I. 2nd Ser. III. (1901), p. 396; Graux in R.I. 2nd Ser. VII. (1905), pp. 33-52; Rivier, I. p. 172. See also below, § [215].