League of Nations mandates

Class A, mandates in Western Asia:

1. Syria
2. Lebanon
3. Palestine
4. Transjordan
5. Iraq

Class B, mandates in Africa:

6. British Togoland
7. French Togoland
8. British Cameroon
9. French Cameroon
10. Ruanda-Urundi
11. Tanganyika
12. South West Africa

Class C, mandates in the Pacific:

1. Japanese Pacific Mandate
2. Territory of New Guinea
3. Nauru
4. Western Samoa

Paris Peace Conference
League of Nations Covenant of the League of Nations Members Organisation Minority Treaties Little Treaty of Versailles Mandates
Treaty of Versailles "War Guilt" clause Reparations Dawes Plan Hague conference on reparations Young Plan Lausanne Conference Locarno Treaties Possible cause of World War II International Opium Convention
Treaty of Saint-Germain-en-Laye Treaty of Saint-Germain-en-Laye
Treaty of Neuilly-sur-Seine Treaty of Neuilly-sur-Seine
Treaty of Trianon Millerand letter
Treaty of Sèvres Partition of the Ottoman Empire Conference of London (1920) San Remo conference Turkish National Movement Turkish War of Independence Treaty of Lausanne
Others American Commission to Negotiate Peace Commission of Responsibilities The Inquiry

A League of Nations mandate represented a legal status under international law for specific territories following World War I, involving the transfer of control from one nation to another. These mandates served as legal documents establishing the internationally agreed terms for administering the territory on behalf of the League of Nations. Combining elements of both a treaty and a constitution, these mandates contained minority rights clauses that provided for the rights of petition and adjudication by the Permanent Court of International Justice.^[1]

The mandate system was established under Article 22 of the Covenant of the League of Nations, entered into force on 28 June 1919. With the dissolution of the League of Nations after World War II, it was stipulated at the Yalta Conference that the remaining mandates should be placed under the trusteeship of the United Nations, subject to future discussions and formal agreements. Most of the remaining mandates of the League of Nations (with the exception of South West Africa) thus eventually became United Nations trust territories.

Two governing principles formed the core of the Mandate System, being non-annexation of the territory and its administration as a "sacred trust of civilisation" to develop the territory for the benefit of its native people.^[2]

According to historian Susan Pedersen, colonial administration in the mandates did not differ substantially from colonial administration elsewhere. Even though the Covenant of the League committed the great powers to govern the mandates differently, the main difference appeared to be that the colonial powers spoke differently about the mandates than their other colonial possessions.^[3]

The mandate system was established by Article 22 of the Covenant of the League of Nations, drafted by the victors of World War I. The article referred to territories which after the war were no longer ruled by their previous sovereign, but their peoples were not considered "able to stand by themselves under the strenuous conditions of the modern world". The article called for such people's tutelage to be "entrusted to advanced nations who by reason of their resources, their experience or their geographical position can best undertake this responsibility".^[4]

U.S. President Woodrow Wilson and South African General Jan Smuts played influential roles in pushing for the establishment of a mandates system.^[5] The mandates system reflected a compromise between Smuts (who wanted colonial powers to annex the territories) and Wilson (who wanted trusteeship over the territories).^[6][7]

All of the territories subject to League of Nations mandates were previously controlled by states defeated in World War I, principally Imperial Germany and the Ottoman Empire. The mandates were fundamentally different from the protectorates in that the mandatory power undertook obligations to the inhabitants of the territory and to the League of Nations.

The process of establishing the mandates consisted of two phases:

1. The formal removal of sovereignty of the state previously controlling the territory.
2. The transfer of mandatory powers to individual states among the Allied Powers.

The divestiture of Germany's overseas colonies, along with three territories disentangled from its European homeland area (the Free City of Danzig, the Memel Territory, and the Saar), was accomplished in the Treaty of Versailles (1919), with the territories being allotted among the Allies on 7 May of that year. Ottoman territorial claims were first addressed in the Treaty of Sèvres (1920) and finalised in the Treaty of Lausanne (1923). The Ottoman territories were allotted among the Allied Powers at the San Remo conference in 1920.

The League of Nations decided the exact level of control by the mandatory power over each mandate on an individual basis. However, in every case the mandatory power was forbidden to construct fortifications or raise an army within the territory of the mandate, and was required to present an annual report on the territory to the Permanent Mandates Commission of the League of Nations.

The mandates were divided into three distinct groups based upon the level of development each population had achieved at that time.

The first group, or Class A mandates, were territories formerly controlled by the Ottoman Empire that were deemed to "... have reached a stage of development where their existence as independent nations can be provisionally recognised subject to the rendering of administrative advice and assistance by a Mandatory until such time as they are able to stand alone. The wishes of these communities must be a principal consideration in the selection of the Mandatory."

The second group of mandates, or Class B mandates, were all former German colonies in West and Central Africa, referred to by Germany as Schutzgebiete (protectorates or territories), which were deemed to require a greater level of control by the mandatory power: "...the Mandatory must be responsible for the administration of the territory under conditions which will guarantee freedom of conscience and religion." The mandatory power was forbidden to construct military or naval bases within the mandates.

Class C mandates, including South West Africa and the South Pacific Islands, were considered to be "best administered under the laws of the Mandatory as integral portions of its territory."

Class	Mandate	Territory	Mandate Power	Prior name	Prior sovereignty	Comments	Current state	Document
A	Mandate for Syria and the Lebanon	Greater Lebanon	France	Various Ottoman sanjaks	Ottoman Empire	29 September 1923 – 24 October 1945. Joined the United Nations on 24 October 1945 as an independent state and Founding Member	Lebanon
		Syria		Various Ottoman sanjaks		29 September 1923 – 24 October 1945: This mandate included Hatay Province (a former Ottoman Alexandretta sanjak), which broke away from the mandate on 2 September 1938 to become a separate French protectorate, which lasted until Hatay Province was ceded to the new Republic of Turkey on 29 June 1939. Joined the United Nations on 24 October 1945 as an independent state	Syria
	Mandate for Palestine	Mandatory Palestine	United Kingdom	Ottoman sanjaks of Jerusalem, Nablus, and Acre		29 September 1923 – 15 May 1948.[8][9][10] A United Nations Partition Plan for Palestine for peacefully dividing the remainder of the Mandate failed.[11] The Mandate terminated at midnight between 14 May and 15 May 1948. On the evening of 14 May, the Chairman of the Jewish Agency for Palestine had declared the establishment of the State of Israel.[12] Following the war, 75% of the area was controlled by the new State of Israel.[13] Other parts, until 1967, formed the West Bank of the Hashemite Kingdom of Jordan and the All-Palestine Government under the Egyptian-controlled Gaza Strip.	Israel Palestine
		Emirate of Transjordan		Ottoman sanjaks of Hauran and Ma'an		In April 1921, the Emirate of Transjordan was provisionally added as an autonomous area under the United Kingdom,[14][15] and it became the independent Hashemite Kingdom of Transjordan (later Jordan) on 17 June 1946 upon joint ratification of the Treaty of London of 1946.	Jordan
	Indirect	Mandatory Iraq		Various Ottoman sanjaks		The draft British Mandate for Mesopotamia was not enacted and was replaced by the Anglo-Iraqi Treaty of October 1922.[16] Britain committed to act the responsibilities of a Mandatory Power in 1924.[17] Iraq attained independence from the United Kingdom on 3 October 1932.	Iraq
B	Belgian Mandate for East Africa	Ruanda-Urundi	Belgium	German East Africa	German Empire	From 20 July 1922 to 13 December 1946. Formerly two separate German protectorates, they were joined as a single mandate on 20 July 1922. From 1 March 1926 to 30 June 1960, Ruanda-Urundi was in administrative union with the neighbouring colony of the Belgian Congo. After 13 December 1946, it became a United Nations trust territory, remaining under Belgian administration until the separate nations of Rwanda and Burundi gained independence on 1 July 1962.	Rwanda Burundi
	British Mandate for East Africa[18]	Tanganyika Territory	United Kingdom			From 20 July 1922 to 11 December 1946. It became a United Nations trust territory on 11 December 1946, and was granted internal self-rule on 1 May 1961. On 9 December 1961, it became independent while retaining the British monarch as nominal head of state, transforming into a republic on the same day the next year. On 26 April 1964, Tanganyika merged with the neighbouring island of Zanzibar to become the modern nation of Tanzania.	Tanzania	Equivalent document as for Ruanda-Urundi, with all articles substantially the same[19]
	British Mandate for the Cameroons	British Cameroon	United Kingdom	German Kamerun		Became part of the United Nations trust territories after World War II on 13 December 1946	Part of Cameroon and Nigeria	Equivalent document as for French Cameroons, with all articles substantially the same[20]
	French Mandate for the Cameroons	French Cameroon	France			Under a Resident and a Commissioner until 27 August 1940, then under a governor. Became part of the United Nations trust territories after World War II on 13 December 1946	Cameroon
	British Mandate for Togoland	British Togoland	United Kingdom	German Togoland		British Administrator post filled by the colonial Governor of the British Gold Coast (present day Ghana) except 30 September 1920 – 11 October 1923 Francis Walter Fillon Jackson). Transformed on 13 December 1946 into a United Nations trust territory; on 13 December 1956 it ceased to exist as it became part of Ghana.	Volta Region, Ghana	Equivalent document as for French Togoland, with all articles substantially the same[20]
	French Mandate for Togoland	French Togoland	France			French Togoland under a Commissioner till 30 August 1956, then under a High Commissioner as the Autonomous Republic of Togo	Togo
C	Mandate for the German Possessions in the Pacific Ocean situated South of the Equator other than German Samoa and Nauru	Territory of New Guinea	Australia	German New Guinea	German Empire	Included German New Guinea and "the group of islands in the Pacific Ocean lying south of the equator other than German Samoa and Nauru".[21] From 17 December 1920 under an (at first Military) Administrator; after (wartime) Japanese/U.S. military commands from 8 December 1946 under UN mandate as North East New Guinea (under Australia, as administrative unit), until it became part of present Papua New Guinea at independence in 1975	Part of Papua New Guinea	Equivalent document as for Nauru, with all articles substantially the same[21]
	Mandate for Nauru	Nauru	United Kingdom			British mandate, administered by Australia, New Zealand, and the United Kingdom. Became part of the United Nations trust territories after liberation from Japanese occupation in World War II	Nauru
	Mandate for the German Possessions in the Pacific Ocean lying North of the Equator[22]	South Seas Mandate	Japan			Known as the South Seas Mandate. Became part of the United Nations trust territories and administered by the United States after World War II	Palau Marshall Islands Federated States of Micronesia Northern Mariana Islands	Equivalent document as for Nauru, with all articles substantially the same[21]
	Mandate for German Samoa	Western Samoa	New Zealand	German Samoa		From 17 December 1920 a League of Nations mandate, renamed Western Samoa (as opposed to American Samoa), from 25 January 1947 a United Nations trust territory until its independence on 1 January 1962	Samoa	Equivalent document as for Nauru, with all articles substantially the same[21]
	Mandate for German South West Africa	South West Africa	South Africa[23]	German South West Africa		From 1 October 1922, Walvis Bay's administration (still merely having a Magistrate until its 16 March 1931 Municipal status, hence a Mayor) was also assigned to the mandate.	Namibia	Equivalent document as for Nauru, with all articles substantially the same[21]

According to the Council of the League of Nations, meeting of August 1920:^[24] "draft mandates adopted by the Allied and Associated Powers would not be definitive until they had been considered and approved by the League... the legal title held by the mandatory Power must be a double one: one conferred by the Principal Powers and the other conferred by the League of Nations."^[25]

Three steps were required to establish a Mandate under international law: (1) The Principal Allied and Associated Powers confer a mandate on one of their number or on a third power; (2) the principal powers officially notify the council of the League of Nations that a certain power has been appointed mandatory for such a certain defined territory; and (3) the council of the League of Nations takes official cognisance of the appointment of the mandatory power and informs the latter that it [the council] considers it as invested with the mandate, and at the same time notifies it of the terms of the mandate, after ascertaining whether they are in conformance with the provisions of the covenant."^[25][26]

The U.S. State Department's Digest of International Law says that the terms of the Treaty of Lausanne provided for the application of the principles of state succession to the "A" Mandates. The Treaty of Versailles provisionally recognised the former Ottoman communities as independent nations.^[4] It also required Germany to recognise the disposition of the former Ottoman territories and to recognise the new states laid down within their boundaries.^[27] The terms of the Treaty of Lausanne required the newly created states that acquired the territory detached from the Ottoman Empire to pay annuities on the Ottoman public debt and to assume responsibility for the administration of concessions that had been granted by the Ottomans. The treaty also let the States acquire, without payment, all the property and possessions of the Ottoman Empire situated within their territory.^[28] The treaty provided that the League of Nations was responsible for establishing an arbitral court to resolve disputes that might arise and stipulated that its decisions were final.^[28]

A disagreement regarding the legal status and the portion of the annuities to be paid by the "A" mandates was settled when an Arbitrator ruled that some of the mandates contained more than one State:

The difficulty arises here how one is to regard the Asiatic countries under the British and French mandates. Iraq is a Kingdom in regard to which Great Britain has undertaken responsibilities equivalent to those of a Mandatory Power. Under the British mandate, Palestine and Transjordan have each an entirely separate organisation. We are, therefore, in the presence of three States sufficiently separate to be considered as distinct Parties. France has received a single mandate from the Council of the League of Nations, but in the countries subject to that mandate, one can distinguish two distinct States: Syria and the Lebanon, each State possessing its own constitution and a nationality clearly different from the other.^[29]

After the United Nations was founded in 1945 and the League of Nations was disbanded, all but one of the mandated territories became United Nations trust territories, a roughly equivalent status.^[11] In each case, the colonial power that held the mandate on each territory became the administering power of the trusteeship, except that of the Empire of Japan, which had been defeated in World War II, lost its mandate over the South Pacific islands, which became a "strategic trust territory" known as the Trust Territory of the Pacific Islands under U.S. administration.

The sole exception to the transformation of the League of Nations mandates into UN trusteeships was that of South Africa and its mandated territory South West Africa. Rather than placing South West Africa under trusteeship like other former mandates, South Africa proposed annexation, a proposition rejected by the UN General Assembly. Despite South Africa's resistance, the International Court of Justice affirmed that South Africa continued to have international obligations regarding the South West Africa mandate. Eventually, in 1990, the mandated territory, now Namibia, gained independence, culminating from the Tripartite Accords and the resolution of the South African Border War — a prolonged guerrilla conflict against the apartheid regime that lasted from 1966 until 1990.

Nearly all the former League of Nations mandates had become sovereign states by 1990, including all of the former UN trust territories with the exception of a few successor entities of the gradually dismembered Trust Territory of the Pacific Islands (formerly Japan's South Pacific Trust Mandate). These exceptions include the Northern Mariana Islands which is a commonwealth in political union with the U.S. with the status of unincorporated organised territory. The Northern Mariana Islands does elect its own governor to serve as territorial head of government, but it remains a U.S. territory with its head of state being the President of the United States and federal funds to the commonwealth administered by the Office of Insular Affairs of the U.S. Department of the Interior.

Remnant Micronesia and the Marshall Islands, the heirs of the last territories of the Trust, attained final independence on 22 December 1990. (The UN Security Council ratified termination of trusteeship, effectively dissolving trusteeship status, on 10 July 1987.) The Republic of Palau, split off from the Federated States of Micronesia, became the last to effectively gain its independence, on 1 October 1994.

• United Nations trust territories

• Anghie, Antony "Colonialism and the Birth of International Institutions: Sovereignty, Economy, and the Mandate System of the League of Nations" 34 (3) New York University Journal of International Law and Politics 513 (2002)
• Hall, H. Duncan (1948). Mandates, Dependencies and Trusteeship.
• Nele Matz, Civilization and the Mandate System under the League of Nations as Origin of Trusteeship, in: A. von Bogdandy and R. Wolfrum, (eds.), Max Planck Yearbook of United Nations Law, Volume 9, 2005, p. 47–95.
• Pugh, Jeffrey, "Whose Brother's Keeper? International Trusteeship and the Search for Peace in the Palestinian Territories", International Studies Perspectives 13, no. 4 (November 2012): 321–343.
• Tamburini, Francesco "I mandati della Società delle Nazioni", in Africana, Rivista di Studi Extraeuropei, n.XV – 2009, pp. 99–122.
• Wright, Quincy (1968). Mandates Under the League of Nations. Greenwood Press.

• Bruce, Scot David, Woodrow Wilson's Colonial Emissary: Edward M. House and the Origins of the Mandate System, 1917–1919 (University of Nebraska Press, 2013).
• Callahan, Michael D. Mandates and empire: the League of Nations and Africa, 1914–1931 (Brighton: Sussex Academic Press, 1999)
• Haas, Ernst B. "The reconciliation of conflicting colonial policy aims: acceptance of the League of Nations mandate system," International Organization (1952) 6#4 pp: 521–536.
• Margalith, Aaron M. The International Mandates (1930) online Archived 2016-03-04 at the Wayback Machine^{[ISBN missing]}
• Mazower, Mark. 2013. No Enchanted Palace: The End of Empire and the Ideological Origins of the United Nations. Princeton University Press.
• Pedersen, Susan. The Guardians: the League of Nations and the Crisis of Empire, (New York: Oxford University Press, 2015)
• Sluglett, Peter. "An improvement on colonialism? The 'A' mandates and their legacy in the Middle East," International Affairs (2014) 90#2 pp. 413–427. On the former Arab provinces of the Ottoman Empire