Beagle conflict |
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Background |
Events |
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The region of the Beagle Channel, explored by Robert FitzRoy in the 1830s, was one of the last to be colonized by Chile and Argentina. The cold weather, the long distances from other inhabited regions, and the shortage of transport and subsistence, kept it far from the governmental task.
In the maps exhibited in this page it is possible to appreciate the lacking knowledge of the geography by navigators and explorers of the zone and also the statesmen who had to decide on the borders. Nevertheless, when the Boundary treaty of 1881 between Chile and Argentina was signed, in the Beagle Channel zone at least the main islands and waterways were known.
The Beagle Channel Arbitration Court reviewed in-depth the cartography of the zone and stated that: [1] : §163
Finally, the Court wishes to stress again that its conclusion to the effect that the [Picton, Nueva and Lennox Islands] group is Chilean according to the 1881 Treaty has been reached on the basis of its interpretation of the Treaty, especially as set forth in paragraphs 55–111 above, and independently of the cartography of the case which has been taken account of only for purposes of confirmation or corroboration. The same applies in respect of the particular maps discussed in, and from, paragraph 119 onwards.
— §163
There was no agreement about the sovereignty over Patagonia and archipelago of Tierra del Fuego before the Boundary treaty of 1881 between Chile and Argentina. While Chile and Argentina claimed territories on both side of the 1984 defined border as own territories, the US and the European powers considered the land and islands often as Res nullius, although the Chilean settlement, and later city, of Punta Arenas at the Strait of Magellan existed since 1843.
From 1881 to 1888 show almost all Argentine maps the Picton, Lennox and Nueva islands as Chilean Territories.
All Chilean maps have shown always the islands as Chilean territories, [1] : §144.2 like the map of engineer Alejandro Bertrand showed here. This border line is today valid for both countries.
There were some few dissentient (Argentine) maps in this period, but the Court declared it untrustworthy because of its "excentric" borderline. (see below).
Partial reproduction of the first Argentine map showing the boundaries laid down in the Boundary Treaty of 23 July 1881, appeared in "La Ilustracion Argentina" issue of 10 November 1881 in Buenos Aires. The copy reproduced here is one handed to the British Minister Plenipontentiary in Buenos Aires by Dr. Bernardo de Irigoyen, Argentine Minister of Foreign Affairs who negotiated and signed the Boundary Treaty. The original is located in the official British Archives. The British Minister sent it to his Government with the comment that the dark shaded area "comprising the Strait of Magellan, half of Tierra del Fuego and all the southern islands, represent was actually has been ceded to Chile by the recent Treaty." [1] : §122 (under Irigoyen map)
This map reproduced here is regarded by Chile as first official Argentine map after the Boundary Treaty of 1881, though its official character was subsequently denied by the Argentine Government. It was ordered to be drawn up by the then Argentine Minister of the Interior, Bernardo de Irigoyen (who had previously been Minister of Foreign Affairs in which capacity he signed the Boundary Treaty of 1881) for inclusion in an official publication issued by the Director of the National Statistics Office, Dr. Francisco Latzina, in 1883 under the title "The Argentine Republic as a field for European Immigration" [1] : §126–128 (under Latzina map of 1882). This was published in Spanish, English, German, French and Italian in an edition of 120.000 copies. On the official map all the islands located south of the Beagle Channel are shown under Chilean Sovereignty.
This official map of Chile, partially reproduced here, "was drawn up on the orders of the Chilean Government for use in primary schools in the Republic and with a view to the most recent data" by Alejandro Bertrand in 1884. The author, an engineer, was member of the Boundary Commissions charged with marking out the Chilean-Argentine Frontier. At the time the map was approved by the Chilean Hydrographic Office. On the map all the islands south of the Beagle Channel as far as Cape Hoorn are shown as being under Chilean sovereignty. All Chilean maps have shown this border line since 1881.
In 1882 the Argentine Geographic Institute decided to issue a general map and an atlas of the Argentine Republic. The task was put in the hands of the well known Professor of the (Argentine) University of Córdoba, Arturo Seelstrang, who had already brought out a map of the Republic in 1875. The Atlas was "constructed and published" by the institute "under the auspices of the National Government". [1] : §137 Plate XXVII of the Atlas, reproduced here, was headed "Gobernacion de la Tierra del Fuego Y Las Islas Malvinas" ("Governorship of Tierra del Fuego and the Malvinas Islands") and were drawn up in 1885 and published the following year. As may be observed, the map shows the boundary line running through the centre of the Beagle Channel, indicating Picton, Nueva and Lennox Islands an all the other islands and islets extending southwards as far as Cape Horn as being under Chilean sovereignty.
General Map of the Argentine Republic and neighbouring countries, 1886. The map shown here states that it was "made according to the latest official data" and "in the light of the latest plans and sketches" by Francisco Moreno, Argentine expert on the Commission for marking out the frontier with Chile, and by Lieutenant-Colonel José Olascoaga, Head of the Military Typographic Office. [1] : §148
At the bottom, right, the map bears the inscription in the Library of Congress.
As may be observed, the international boundary is traced along the centre of the Beagle Channel, showing Picton, Nueva and Lennox and all the other islands and islets extending southwards as far as Cape Horn as being under Chilean sovereignty.
This map, reproduced here, is included in the book Geography of the Argentine Republic (Geografía de la República Argentina) published in Buenos Aires in 1888, editorial Lajouane, by Francisco Latzina, National Director of the Argentine Statistics Institute and member of numerous scientific societies. "This work obtained the 'Rivadavia Award' [Gran Premio Bernardino Rivadavia] of the 'Argentine Geographic Institute' and a large number of copies of it were ordered by the Argentine authorities for distribution in Europe and elsewhere." [1] : §157a The jury was conformed by Estanislao Zeballos, Bartolomé Mitre, Julio Argentino Roca, Domingo Faustino Sarmiento, Guillermo Rawson and Lucio V. Mansilla. [2]
In the extreme southern region, the international boundary is traced along the centre of the Beagle Channel and stretches to the south of the Isla de los Estados. Here it shows Picton, Nueva and Lennox Islands and all other islands and islets extending southward as far as Cape Horn as being under Chilean sovereignty.
The Peruvian geographer Mariano Felipe Paz Soldán, who sought refuge in Buenos Aires during the disastrous War of the Pacific (1879-1883) between Peru and Chile, drew 1888, amongst others, two maps of Argentina:
The relevant sections of the maps are shown on the left side.
Soldán wrote in his Diccionario geográfico estadístico nacional argentino page 20 (1885):
The Mapa Orohidrográfico shows the Islands Picton and Nueva as under Argentine and the island Lennox as under Chilean sovereignty. In contrast, the Mapa general shows all disputed islands as Chilean territories.
This and other turnarounds (see below) of Paz Soldáns Interpretation of the 1881 Boundary Treaty caused the Arbitral Court to discard his maps from the documentary evidence.
Other maps of Paz Soldán show the disputed islands as Chilean Territories:
The map partially reproduced here was drawn up in Buenos Aires in 1889 by J. Duclout and published by E. Nolte.
In the southern region the international boundary is shown traced through the centre of the Beagle channel, continuing beyond the eastern mouth of the Channel, indicating Picton, Nueva and Lennox Islands and all other islands and islets extending southward as far as Cape Horn as being under Chilean sovereignty
In the course of time became noticeable in Argentina a position that worked continuously towards a new interpretation of the Boundary Treaty. For example, in 1885 appeared a map of Mariano Paz Soldán that continued the perpendicular in the Tierra del Fuego Island forth to the Antarctic, "a fanciful line unrelated to the Treaty basis of division" as stated by the Court of Arbitration. In 1891, the Argentine Government created an "International Boundaries Office" at the Ministry of Foreign Affairs and in 1893 issued other decree providing that works on national geography already published should not be considered as officially approved unless accompanied by a statement from the Department of Foreign Affairs.
In 1889 appeared the Carte de la République Argentine as part of L'Agriculture et l'Elevage dans la République Argentine , officially sponsored for the purposes of the Argentine participation in the Paris World Exhibition of 1889. In the work of which this map was a part, the version there given of the article III of the 1881 Treaty (Argentine attribution in the Islands clause), was seriously incorrect: [1] : §157b
...appartiendront à la République Argentine : l'île de los Estados, les îlots qui l'entourent et les autres îles de l'Atlantique au sud de la Terre de Feu et des côtes orientales de la Patagonie...
...to the Argentine Republic shall belong Staten Island, the islets that surround it, and the other Atlantic islands to the south of Tierra del Fuego and of the eastern coasts of Patagonia... (emphasis added)
instead of the original text:
...to the Argentine Republic shall belong Staten Island, the small islands next to it, and the other islands on the Atlantic to the east of Tierra del Fuego and of the eastern coast of Patagonia... (emphasis added)
[[Image:Pelliza.gif|thumb|400px|left|Argentine views of the 1881 Boundary Treaty, Maps drawn according to «Report and Decision of the Court of Arbitration», ]
By the review of the cartography, the tribunal refused the validity of 3 in Argentina and 1 in London (by the Argentine Embassy) published maps. The maps are not disponible for now, but the court gave to every refuse a briefly map description (see text on the maps) that allowed us to rebuild the border line as showed at the left side.
In order to decide the validity of a map the court used following criterion for exclusion:
Footnote 102 This in two respects: (i) since under the first part of Article III of the Treaty, the perpendicular in the Isla Grande of Tierra del Fuego, from Cape Espíritu Santo to the Beagle Channel, was deliberately stopped there, a map showing a line of division which, by prolonging the perpendicular, crossed the Channel, and proceeded southward through the Murray Sound and past the Wollaston group, could not possibly represent the division contemplated by the Treaty; (ii) this map, thereby, and equally by colouring, showed, not only the PNL group, but also Navarino Island and the Hermite group, as Argentine. But these localities were "to the south of the Beagle Channel" according to any possible interpretation of that phrase in the Chilean attribution under the Islands clause of the Treaty.
The refused maps are:
This partially reproduced map corresponds to that titled Preliminary Map of the Southern Region of the Argentine Republic which was included as No. XIV in the Argentine Evidence submitted by the Argentine Government to British Arbitration in 1898–1902. It is the first official map of Argentina showing in the area of the Beagle Channel a different frontier from the one established in the Boundary Treaty with Chile of 1881. As may be seen from the map, the boundary line deviates from the Beagle Channel towards Picton and Richmond Passages to end up between Lennox and Nueva Islands. In that way Picton and Nueva Islands appear as Argentine and Lennox Island as Chilean. The islands and islets extending southward as far as Cape Horn continue to be shown as under Chilean sovereignty. It should be recalled that there was no question concerning the territories to the south of the Magellan Strait in the British Arbitration of 1898–1902. Thus neither Chile nor Argentina made any specific reference to the boundary shown on the Argentine map reproduced here.
After the discovery of gold in Tierra del Fuego the Romanian adventurer Julio Popper gave a speech at the "Instituto Geográfico Argentino" (predecessor of Instituto Geográfico Militar) about a change of course of the Beagle channel. He alleged that the channel did not reach the Cape San Pío but at the "Punta Navarro" flows to the south through the Navarino and Picton islands. [3] : 69 1899 ordered the Argentine navy the ship ARA Almirante Brown (1880) under the command of Captain Juan P. Saenz Valiente on a hydrographic survey of the Beagle channel. The Argentine survey corroborated the Argentine thesis about the change of the Beagle and therefore the institut published 1901 new charts of the zone with a new Toponymy. They expanded the Moat-Bay (Bahía Moat), located at the shore of the Tierra del Fuego, opposite to the Picton island, to a (new) Moat channel. The new channel reached from Punta Navarro to Cabo San Pío. Consequently, the Picton, Nueva and Lennox islands became Terra Nullius, because the treaty of 1881 at this zone does not mention other islands than "south of the Beagle channel". The toponymy was disclosed to the United Kingdom and to the United States of America (the United States Hydrographic Office used the Argentine name "Moat Channel" in South America Pilot (1916) in p. 246). Chile, the immediate neighbour was not informed and was advised of the new names only 1904 through new charts of the zone edited by the US. Segundo R. Storni, then Leutnant later (1943) Foreign Ministers of Argentina legitimated the modifications:
The word "Bay" hasn't a precise signification and the configuration of the region inclines the meaning to a channel, so it is a logical modification. But we recognize that it wasn't absolutely necessary
A soviet map of the Beagle Channel used the Argentine toponyme "Moat Channel" in 1967. See Sowjet map 1967.
The new name didn't prevail and disappeared into oblivion. The Treaty of Peace and Friendship of 1984 between Chile and Argentina mention (only) the Beagle channel. [5]
This map, whose southern part is reproduced here, is included in Col. Sir Thomas Holdich's work "The Countries of the King's Award" written immediately after his work on the British Arbitration in 1898–1902. After the British Arbitral Award of 1902 and during the course of the work marking out the frontier line indicated therein, Holdich visited the Beagle Channel zone which was not included in the arbitration. In the Beagle Channel region the map marks the international boundary as passing through the latter up to beyond its eastern mouth. Picton, Nueva and Lennox Islands and all the other islands extending southwards as far as Cape Horn are shown as under Chilean sovereignty.
Other Europeans maps showing the same zone:
This reproduction of the "Map of the division of the Argentine territory into Military regions 1905" was included in the Military Bulletin of the Argentine Ministry of War, Year IV, vol. I, 1 May 1905, No. 140. The Argentine military regions are distinguished by different colours, all territories located south of the Beagle Channel as far as Cape Horn have been omitted and thus understood to be under Chilean sovereignty.
Partial reproduction of the "Nuevo Mapa de la República Argentina", 1914, prepared by Pablo Ludwig. The complete map is under Nuevo mapa de la República Argentina (1914). In the map Picton and Nueva appear under Argentine, Lennox under Chilean sovereignty.
Rebuild of the sheet Ushuaia from the es:Instituto Geográfico Militar (Argentina), 1967 edition. Only the borderline and the oceanic Toponymy are copied from the copyrighted original. A similar map was issued in 1948. [6]
The international boundary shown in the Beagle Channel zone corresponds to the Argentine claim in the area which the arbitral decision of 18 April 1977 put a definitive end. Nueva Island is not shown on the map, and Picton and Lennox Islands are partially shown, coloured as belonging to the Argentine Republic. Nevertheless, all the other islands and islets extending southward as far as Cape Horn figure as under Chilean sovereignty.
In the official Argentine map the geographic nomenclature "OCÉANO ATLÁNTICO SUR" (South Atlantic Ocean) appears inserted to the south of Hoste Island and in the western region of Wollaston and Hermite Islands, in other words more than one degree longitude west of Cape Horn, thus contradicting the (1978) Argentine thesis concerning the ocean toponymy in the region of the extreme south of America, that the Cape Horn was the border between the Pacific and Atlantic Ocean. The reason could be that in 1938 the Argentine delegation to the Hydrographic Conference in Oslo tried to define the meridian 68° 43'W (through the Chilean Diego Ramírez Islands) as limit between the Pacific and Atlantic oceans. [3] : 97
During the Proceso de Reorganización Nacional (1976–1983) and based on concepts of territorial nationalism and geopolitics Argentine geography sustained the possession of the islands as a "vital issue" and called on to a "march to the south" in order to follow some kind of Argentine Manifest Destiny :
Classical geopolitics [thoughts] of the late nineteenth century, the crudest biological metaphors of geographic determinism, militarism, the principles of the Doctrina de la Seguridad Nacional and the corporative nationalism can be noted, concealed, subtly or in plain language in the manifests, conferences and statements of the geographers
— Geografía, guerra y nacionalismo. La Sociedad Argentina de Estudios Geográficos (GAEA) en las encrucijadas patrióticas del gobierno militar, 1976–1983. [7]
The Beagle conflict, the Falklands dispute and the question of the use of the Rio de la Plata Basin became through the works of the geographic topics of popular interests and opinion.
This image shows a facsimile of the map appeared in the cover of the book compiled by of Admiral (R) Isaac Rojas, former vice-president of Argentina and former Chief of the Argentine Navy, and Arturo Medrano "Argentina en el Atlántico Chile en el Pacífico". [8] It is approved by the Argentine Ministry of Education for teaching in schools and high schools.
The book justifies, as they say, the Argentine claim over the islands. Not only Picton, Nueva, Lennox and all islands east from Cape Horn meridian are Argentine Territories but also the east side of Navarino Island with the Chilean village of Puerto Toro appears under Argentine sovereignty.
After the Falklands War, on the postage stamp issued in 1983 Cape Horn island was labeled as Argentinian, and the islands of Picton, Lennox and Nueva at the eastern entrance to the Beagle Channel are shaded like Argentina. [9] [10]
A map of South America appears on the back of Argentine passports, showing the country's location within the continent and within Mercosur, together with the Argentine Antarctic Claim and the Falkland Islands as part of Argentina. Most of the Chilean Magallanes Region disappeared, included the Strait of Magellan, the Chilean part of Tierra del Fuego and all islands south of the Beagle Channel.
The contrast could hardly be starker between the multiple Argentine views and the sole Chilean view of the 1881 Boundary Treaty. The interpretation of the 1881 Boundary Treaty seems to have challenged to the limit the fantasy and intelligence of the Argentine cartography as of 1888, for they found more than 8 different border lines from the same text. Anyway, in his Report and Decision on 18 April 1977 the Court of Arbitration judged:
There can be no doubt that in the immediate post-Treaty period, that is to say from 1881 to at least 1887/88, Argentine cartography in general showed the PNL group as Chilean;
— §148 [1]
Argentine scientists Carlos Escudé and Andrés Cisneros in Historia general de las relaciones exteriores de la República Argentina give a résumé of the Boundary Treaty of 1881: [2]
Una serie de documentos prueban que la intención tanto de los firmantes del tratado de 1881 como de la clase política y los gobiernos argentinos entre 1881 y 1902 fue la de otorgar dichas islas a Chile. A series of documents prove that the purpose of the subscriber of the 1881 Treaty as well the Argentine political class and the Argentine governments from 1881 to 1902 was to grant the islands to Chile.
The same opinion shares the authors Karl Hernekamp, [11] Annegret I. Haffa [12] and Andrea Wagner. [13]
Tierra del Fuego is an archipelago off the southernmost tip of the South American mainland, across the Strait of Magellan.
The Strait of Magellan, also called the Straits of Magellan, is a navigable sea route in southern Chile separating mainland South America to the north and Tierra del Fuego to the south. The strait is considered the most important natural passage between the Atlantic and Pacific oceans. It was navigated by canoe-faring indigenous peoples including the Kawésqar for thousands of years. The strait is approximately 570 km long and 2 km wide at its narrowest point. In 1520, the Spanish expedition of Ferdinand Magellan, after whom the strait is named, became the first Europeans to discover it.
Ushuaia is the capital of Tierra del Fuego, Antártida e Islas del Atlántico Sur Province, Argentina. With a population of 82,615 and a location below the 54th parallel south latitude, Ushuaia claims the title of world's southernmost city.
Tierra del Fuego, officially the Province of Tierra del Fuego, Antarctica and South Atlantic Islands, is the southernmost, smallest, and least populous Argentine province. The provincial capital city is Ushuaia, from a native word meaning "bay towards the end".
Puerto Williams is a city, port and naval base on Navarino Island in Chile, and is also the southernmost populated settlement in the world. It faces the Beagle Channel. It is the capital of the Chilean Antarctic Province, one of four provinces in the Magellan and Chilean Antarctica Region, and administers the communes of Chilean Antarctic Territory and Cabo de Hornos. It has a population of 2,874, including both naval personnel and civilians. Puerto Williams claims the title of world's southernmost city. The settlement was founded in 1953, and was first named Puerto Luisa. The town was later named after John Williams Wilson, a British man who founded Fuerte Bulnes, the first settlement in the Strait of Magellan. It has served primarily as a naval base for Chile. The Chilean Navy runs the Guardiamarina Zañartu Airport and hospital, as well as nearby meteorological stations. Since the late 20th century, the number of navy personnel has decreased in Puerto Williams and the civilian population has increased. In that period, tourism and support of scientific research have contributed to an increase in economic activity.
Beagle Channel is a strait in the Tierra del Fuego Archipelago, on the extreme southern tip of South America between Chile and Argentina. The channel separates the larger main island of Isla Grande de Tierra del Fuego from various smaller islands including the islands of Picton, Lennox and Nueva; Navarino; Hoste; Londonderry; and Stewart. The channel's eastern area forms part of the border between Chile and Argentina and the western area is entirely within Chile.
Picton, Lennox and Nueva form a group of three islands at the extreme southern tip of South America, in the Chilean commune of Cabo de Hornos in Antártica Chilena Province, Magallanes and Antártica Chilena Region. Located in the Tierra del Fuego archipelago, they lie east of Navarino Island and are separated from the Argentine part of Isla Grande in the north by the Beagle Channel. They have an area of 170.4 km2 (Lennox), 105.4 km2 (Picton), 120.0 km2 (Nueva).
The Beagle conflict was a border dispute between Chile and Argentina over the possession of Picton, Lennox and Nueva islands and the scope of the maritime jurisdiction associated with those islands that brought the countries to the brink of war in 1978.
International relations between the Republic of Chile and the Argentine Republic have existed for decades. The border between the two countries is the world's third-longest international border, which is 5,300 km (3,300 mi) long and runs from north to south along the Andes mountains. Although both countries gained their independence during the South American wars of liberation, during much of the 19th and the 20th century, relations between the countries were chilly as a result of disputes over the border in Patagonia. Despite this, Chile and Argentina have never been engaged in a war with each other. In recent years, relations have improved. Argentina and Chile have followed quite different economic policies. Chile has signed free trade agreements with countries such as China, the United States, Canada, South Korea, as well as European Union, and it's a member of the APEC. Argentina belongs to the Mercosur regional free trade area. In April 2018, both countries suspended their membership from the UNASUR.
Cabo San Pío at 55°3′S66°31′W, the southernmost tip of mainland Isla Grande de Tierra del Fuego as well as of Argentina, except for the small islet Islote Blanco that lies about 1.5 kilometres (0.93 mi) off the coast in SW direction.
On 22 July 1971 Salvador Allende and Alejandro Lanusse, the Presidents of Chile and Argentina, signed an arbitration agreement. This agreement related to their dispute over the territorial and maritime boundaries between them, and in particular the title to the Picton, Nueva and Lennox islands near the extreme end of the American continent, which was submitted to binding arbitration under the auspices of the United Kingdom government.
The direct negotiations between Chile and Argentina about the islands and maritime rights in Beagle conflict began after the Queen Elizabeth II of the United Kingdom announced on 2 May 1977 the judgement of the Beagle Channel Arbitration to the governments of both countries. The court ruled that the islands and all adjacent formations belonged to Chile. The direct negotiations finished with the Act of Montevideo on 9 January 1979, where both countries accept the papal mediation after Argentina's call off of the Operation Soberanía. This was the most dangerous phase of the Beagle Conflict and there was a real possibility of open warfare.
The Treaty of Peace and Friendship of 1984 between Chile and Argentina was signed into agreement at the Vatican on 29 November 1984.
The Boundary Treaty of 1881 between Argentina and Chile was signed on 23 July 1881 in Buenos Aires by Bernardo de Irigoyen, on the part of Argentina, and Francisco de Borja Echeverría, on the part of Chile, with the aim of establishing a precise and exact border between the two countries based on the uti possidetis juris principle. Despite dividing largely unexplored lands, the treaty laid the groundwork for nearly all of Chile's and Argentina's 5600 km current border.
The southern coast of Chile presents a large number of fjords and fjord-like channels from the latitudes of Cape Horn to Reloncaví Estuary. Some fjords and channels are important navigable channels providing access to ports like Punta Arenas, Puerto Chacabuco and Puerto Natales.
Tierra del Fuego National Park is a national park on the Argentine part of the island of Tierra del Fuego, within Tierra del Fuego Province in the ecoregion of Patagonic Forest and Altos Andes, a part of the subantarctic forest. Established on 15 October 1960 under the Law 15.554 and expanded in 1966, it was the first shoreline national park to be established in Argentina.
Between 1883 and 1906 Tierra del Fuego experienced a gold rush attracting many Chileans, Argentines and Europeans to the archipelago, including many Dalmatians. The gold rush led to the formation of the first towns in the archipelago and fueled economic growth in Punta Arenas. After the gold rush was over, most gold miners left the archipelago, while the remaining settlers engaged in sheep farming and fishing. The rush made a major contribution to the genocide of the indigenous Selk'nam people.
The Argentina–Chile border is the longest international border of South America and the third longest in the world after the Canada–United States border and the Kazakhstan–Russia border. With a length of 5,308 kilometres (3,298 mi), it separates Argentina from Chile along the Andes and on the islands of Tierra del Fuego. However, there are some border disputes, particularly around the Southern Patagonian Ice Field. It is the largest border of the two countries, beating the Argentina–Paraguay and Chile–Bolivia, Argentina's and Chile's second largest borders, respectively.
The natural delimitation between the Pacific and South Atlantic Oceans by the Scotia arc is the title of a scientific theory developed in Chile in which it was postulated that the boundary between the Southeast Pacific Ocean and the Southwest Atlantic Ocean would not be the meridian of the Cape Horn, but rather the Scotia Arc, an underwater orographic chain which links the Tierra del Fuego archipelago with the Antarctic continent.
The bioceanic principle, also called the Atlantic-Pacific principle, is a criterion or doctrine of territorial division that Argentina tried to apply as a principle of international law within its limits with Chile, of which Chile strictly rejected its existence.
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