The Tripartite Convention of 1899 concluded the
Second Samoan Civil War, resulting in the formal partition of the
Samoan archipelago into a
German colony and a
United States territory
In the United States, a territory is any extent of region under the sovereign jurisdiction of the federal government of the United States, including all waters (around islands or continental tracts). The United States asserts sovereign rights for ...
.
Forerunners to the Tripartite Convention of 1899 were the Washington Conference of 1887, the
Treaty of Berlin of 1889, and the Anglo-German Agreement on Samoa of 1899.
Politics prior to the convention
By the 1870s, modern economic conditions were well established and accepted by the Samoans, who had just enough of a government that could be manipulated at will by the foreign business interests in
Samoa
Samoa, officially the Independent State of Samoa and known until 1997 as Western Samoa, is an island country in Polynesia, part of Oceania, in the South Pacific Ocean. It consists of two main islands (Savai'i and Upolu), two smaller, inhabited ...
. After the United States concluded a friendship treaty with Samoa in 1878, Germany negotiated her own Favorite Nation Treaty in 1879 with the same Samoan faction as the U.S., while later in 1879 the Anglo-Samoan treaty was completed with a rival faction. Contentions among the whites in Samoa, plus native factional strife led to side-choosing that became deadly warring with the introduction of modern weapons.
Washington conference of 1887
To attempt to resolve some of the problems, the United States, Germany, and the United Kingdom agreed to a conference in Washington in June 1887. After the surfacing of serious disagreements among the parties, the conference adjourned without results. Fighting by nationals of the three powers with their factional local allies led to a conflict that was only tempered by the
Apia hurricane of 1889 that wrecked warships on the verge of hostilities.
Treaty of Berlin of 1889
The seriousness of the situation was finally recognized and German foreign minister Count
Herbert von Bismarck
Nikolaus Heinrich Ferdinand Herbert, Prince of Bismarck (born Nikolaus Heinrich Ferdinand Herbert Graf von Bismarck-Schönhausen; 28 December 1849 – 18 September 1904) was a German politician, who served as Foreign Secretary from 1886 to 1890. ...
(chancellor
Otto von Bismarck
Otto, Prince of Bismarck, Count of Bismarck-Schönhausen, Duke of Lauenburg (; born ''Otto Eduard Leopold von Bismarck''; 1 April 1815 – 30 July 1898) was a German statesman and diplomat who oversaw the unification of Germany and served as ...
's son) proposed to reconvene the adjourned Washington conference of 1887. He invited U.S. and British representatives to Berlin in April 1889. Bismarck's pragmatic approach proposed protection for life, property, and commerce of the treaty participants and relegated native government and their unstable "kings" to the Samoans, with which the British concurred. The United States insisted on a three-powers authority while preserving native rights. In the Treaty of Berlin of 1889 thus a joint protectorate or
condominium
A condominium (or condo for short) is an ownership regime in which a building (or group of buildings) is divided into multiple units that are either each separately owned, or owned in common with exclusive rights of occupation by individual own ...
was declared, with a European/American chief justice, a municipal council for Apia, and with the "free right of the natives to elect their Chief or King" as the signatory to the act, thus the treaty professed to recognize a Samoan independent government.
No sooner was the native royal figurehead appointed (and, after disturbances, restored), then the other chiefs rebelled, and
civil war
A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...
ensued. By the end of the 19th century, the failure of the arrangement was freely admitted by the governments of the three powers, since the principal protagonists in Samoa acted directly for their own respective interests, frequently overruling the officials of the condominium.
The Tripartite Convention of 1899

The German government "had never made a secret of their belief that international control of Samoa was visionary and impractical ... and they began a series of diplomatic moves intended to eliminate it altogether." In April the British government agreed to the formation of a joint commission of Germany, the US and the UK on the matter. The Joint Commission on Samoa was given authority to supersede local authorities and settle matters. Their arrival in May effectively ended hostilities. By July the commission had decided that the islands must be partitioned, as continued joint rule was infeasible. The American commissioner
Bartlett Tripp endorsed the view of President McKinley and others that the United States should retain
Tutuila
Tutuila is the largest and most populous island of American Samoa and is part of the archipelago of the Samoan Islands. It is the third largest island in the Samoan Islands chain of the Central Pacific. It is located roughly northeast of Brisba ...
and its harbor of
Pago Pago
Pago Pago ( or ; Samoan language, Samoan: )Harris, Ann G. and Esther Tuttle (2004). ''Geology of National Parks''. Kendall Hunt. Page 604. . is the capital of American Samoa. It is in Maoputasi County, American Samoa, Maoputasi County on Tutuila ...
. With partitioning of Samoa by then the prevailing understanding, the United States expressed no objections to Britain and Germany coming to a preliminary agreement. The United Kingdom was then embroiled in the
Second Boer War
The Second Boer War (, , 11 October 189931 May 1902), also known as the Boer War, Transvaal War, Anglo–Boer War, or South African War, was a conflict fought between the British Empire and the two Boer republics (the South African Republic and ...
and therefore viewed as in a weakened bargaining position; however, the German desire to rapidly conclude the negotiations and bring the western Samoan islands into their colonial empire had a balancing effect that was clearly evidenced in the agreement as signed.
Kaiser
Wilhelm II
Wilhelm II (Friedrich Wilhelm Viktor Albert; 27 January 18594 June 1941) was the last German Emperor and King of Prussia from 1888 until Abdication of Wilhelm II, his abdication in 1918, which marked the end of the German Empire as well as th ...
had accepted an invitation to visit England in November 1899 and his government insisted that an agreement on Samoa should be concluded before his departure for Britain. A settlement was reached at London by 9 November and signed on 14 November. It was therefore this Anglo-German agreement on Samoa in tandem with the informal understanding with the United States that partitioned Samoa. It only remained for the three powers to negotiate a tripartite convention in order to secure the approval of the United States to the whole agreement.
The Tripartite Convention of 1899 was duly constituted and documents were signed at Washington on 2 December 1899 by the U.S. Secretary of State
John Hay
John Milton Hay (October 8, 1838July 1, 1905) was an American statesman and official whose career in government stretched over almost half a century. Beginning as a Secretary to the President of the United States, private secretary for Abraha ...
, Baron
Theodor von Holleben, German ambassador to the United States, and Sir
Julian Pauncefote, British ambassador to the United States, with ratifications exchanged on 16 February 1900.
Positions resulting from the Tripartite Convention of 1899
United States:

:President
William McKinley
William McKinley (January 29, 1843September 14, 1901) was the 25th president of the United States, serving from 1897 until Assassination of William McKinley, his assassination in 1901. A member of the Republican Party (United States), Repub ...
signed an executive order on 19 February 1900, reading: "The Island of Tutuila, of the Samoan Group, and all other islands of the group east of longitude 171 degrees west of Greenwich, are hereby placed under the control of the Department of the Navy for a naval station. The Secretary of the Navy shall take such steps as are necessary to establish the authority of the United States and to give to the islands the necessary protection." On the same day
John D. Long, Secretary of the Navy, stated further that these islands "... are hereby established into a naval station, to be known as the naval station, Tutuila, and to be under the command of a commandant."
Rose Island, an uninhabited coral atoll, and the island of
Aunuʻu were included. The cession of deeds of the islands of the
Manua Group (
Taʻū and
Ofu-Olosega) did not take place until 1904, although the respective chiefs had previously accepted the sovereignty of the United States. The term "
American Samoa
American Samoa is an Territories of the United States, unincorporated and unorganized territory of the United States located in the Polynesia region of the Pacific Ocean, South Pacific Ocean. Centered on , it is southeast of the island count ...
" entered into conscious usage in 1905 with a first assembly, or ''fono'', of the Samoan chiefs on all ceded islands within the naval station.
German Empire:
:The Samoan islands of
Upolu and
Savaii and the small islands of
Apolima and
Manono, west of 171 degrees west longitude, were declared a protectorate of the
German Empire
The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
, and became known as
German Samoa, with a flag raising on 1 March 1900, and appointment of
Wilhelm Solf as governor. This "happy acquisition" was viewed in Germany as a "splendid achievement in colonial policy, which is at the same time a genuinely popular one."
United Kingdom:
:By surrendering all rights in Samoa, the United Kingdom "obtained extensive compensation from Germany elsewhere",
in effect,
* "transfer of all of the German rights in the
Tonga
Tonga, officially the Kingdom of Tonga, is an island country in Polynesia, part of Oceania. The country has 171 islands, of which 45 are inhabited. Its total surface area is about , scattered over in the southern Pacific Ocean. accordin ...
group including"
** "that of establishing a naval and coaling station,"
** "and the right of
extraterritoriality
In international law, extraterritoriality or exterritoriality is the state of being exempted from the jurisdiction of local law, usually as the result of diplomatic negotiations.
Historically, this primarily applied to individuals, as jurisdict ...
;"
* "the shifting of the line of demarcation between German and British islands in the
Solomon
Solomon (), also called Jedidiah, was the fourth monarch of the Kingdom of Israel (united monarchy), Kingdom of Israel and Judah, according to the Hebrew Bible. The successor of his father David, he is described as having been the penultimate ...
group so as to give to Great Britain all the German islands to the east and southeast of the island of
Bougainville;"
* "the division of the so-called neutral zone in
West Africa
West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations geoscheme for Africa#Western Africa, United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Gha ...
by a definite boundary line between British and German possessions;"
* "the promise of Germany to take into consideration, as much and as far as possible, the wishes which the Government of Great Britain may express with regard to the development of reciprocal tariffs in the territories of"
** "
Togo
Togo, officially the Togolese Republic, is a country in West Africa. It is bordered by Ghana to Ghana–Togo border, the west, Benin to Benin–Togo border, the east and Burkina Faso to Burkina Faso–Togo border, the north. It is one of the le ...
and"
** "the
Gold Coast;"
* "the renouncing by Germany of her rights of extraterritoriality in
Zanzibar
Zanzibar is a Tanzanian archipelago off the coast of East Africa. It is located in the Indian Ocean, and consists of many small Island, islands and two large ones: Unguja (the main island, referred to informally as Zanzibar) and Pemba Island. ...
."
These treaty arrangements of the Tripartite Convention of 1899 stayed in place until the outbreak of
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
in 1914.
Footnotes
Bibliography and references
*
*
*
* (Reprinted by special arrangement with Yale University Press. Originally published at New Haven: Yale University Press. 1928.)
*
See also
*
Treaty of Cession of Tutuila
*
Treaty of Cession of Manu'a
*
Samoan unification
External links
Annexation of SamoaHistory of Samoa - R.M. Watson
{{US growth
History of the Samoan Islands
Boundary treaties
1899 in Samoa
1899 in American Samoa
1899 in the German colonial empire
German Samoa
History of American Samoa
Treaties of the German Empire
Treaties of the United Kingdom
Treaties of the United States
Treaties concluded in 1899
Treaties entered into force in 1900
1899 establishments in Oceania
1914 disestablishments in Oceania
British colonisation of Oceania
German colonisation in Oceania
History of United States expansionism
American Samoa–Samoa border
Germany–United States relations
Germany–United Kingdom relations
December 1899