In case any of the Powers signatory hereto or subsequently admitted to the League of Nations shall, before becoming a party to this Covenant, have undertaken any treaty obligations which are inconsistent with the terms of this Covenant, it shall be the duty of such Power to take immediate steps to procure its release from such obligations. _SUPPLEMENTARY AGREEMENTS_ I In respect of the peoples and territories which formerly belonged to Austria-Hungary, and to Turkey, and in respect of the colonies formerly under the dominion of the German Empire, the League of Nations shall be regarded as the residuary trustee with sovereign right of ultimate disposal or of continued administration in accordance with certain fundamental principles hereinafter set forth; and this reversion and control shall exclude all rights or privileges of annexation on the part of any Power. These principles are, that there shall in no case be any annexation of any of these territories by any State either within the League or outside of it, and that in the future government of these peoples and territories the rule of self-determination, or the consent of the governed to their form of government, shall be fairly and reasonably applied, and all policies of administration or economic development be based primarily upon the well-considered interests of the people themselves. II Any authority, control, or administration which may be necessary in respect of these peoples or territories other than their own self-determined and self-organized autonomy shall be the exclusive function of and shall be vested in the League of Nations and exercised or undertaken by or on behalf of it. It shall be lawful for the League of Nations to delegate its authority, control, or administration of any such people or territory to some single State or organized agency which it may designate and appoint as its agent or mandatory; but whenever or wherever possible or feasible the agent or mandatory so appointed shall be nominated or approved by the autonomous people or territory. III The degree of authority, control, or administration to be exercised by the mandatary State or agency shall in each case be explicitly defined by the League in a special Act or Charter which shall reserve to the League complete power of supervision and of intimate control, and which shall also reserve to the people of any such territory or governmental unit the right to appeal to the League for the redress or correction of any breach of the mandate by the mandatary State or agency or for the substitution of some other State or agency, as mandatary. The mandatary State or agency shall in all cases be bound and required to maintain the policy of the open door, or equal opportunity for all the signatories to this Covenant, in respect of the use and development of the economic resources of such people or territory.