Protectorate as Precursor of Occupation.
§ 226. The growing desire to acquire vast territories as colonies on the part of States unable at once to occupy effectively such territories has, in the second half of the nineteenth century, led to the contracting of agreements with the chiefs of natives inhabiting unoccupied territories, by which these chiefs commit themselves to the "protectorate" of States that are members of the Family of Nations. These so-called protectorates are certainly not protectorates in the technical sense of the term designating the relation that exists between a strong and a weak State through a treaty by which the weak State surrenders itself into the protection of the strong and transfers to the latter the management of its more important international relations.[443] Neither can they be compared with the protectorate of members of the Family of Nations exercised over such non-Christian States as are outside that family,[444] because the respective chiefs of natives are not the heads of States, but heads of tribal communities only. Such agreements, although they are named "Protectorates," are nothing else than steps taken to exclude other Powers from occupying the respective territories. They give, like discovery, an inchoate title, and are preparations and precursors of future occupations.
[443] See above, §§ [92] and [93].
Spheres of influence.
§ 227. The uncertainty of the extent of an occupation and the tendency of every colonising State to extend its occupation constantly and gradually into the interior, the "Hinterland," of an occupied territory, has led several States which have colonies in Africa to secure for themselves "spheres of influence" by international treaties with other interested Powers. Spheres of influence are therefore the names of such territories as are exclusively reserved for future occupation on the part of a Power which has effectively occupied adjoining territories. In this way disputes are avoided for the future, and the interested Powers can gradually extend their sovereignty over vast territories without coming into conflict with other Powers. Thus, to give some examples, Great Britain has concluded treaties regarding spheres of influence with Portugal[445] in 1890, with Italy[446] in 1891, with Germany[447] in 1886 and 1890, and with France[448] in 1898.[449]
[445] See Martens, N.R.G. 2nd Ser. XVIII. p. 558.
[446] See Martens, N.R.G. 2nd Ser. XVIII. p. 175.
[447] See Martens, N.R.G. 2nd Ser. XII. p. 298, and XVI. p. 895.
[448] See Martens, N.R.G. 2nd Ser. XXIX. p. 116.