Antarctic Treaty System

• 1. Introduction

  ›

  The Antarctic Treaty System governs an entire continent where no human being has ever been born. On the 1st of December 1959, twelve nations signed an agreement in Washington that would freeze territorial ambitions, ban military operations, and dedicate the southernmost landmass on Earth to peaceful science. What makes this extraordinary is not just what the treaty prohibited. It was the first arms control agreement of the Cold War, struck between countries that were, in almost every other arena, locked in rivalry and suspicion. How did rivals manage to agree on anything at all? And what happens to a continent governed by a document that nations agreed could be revisited starting from the year 2048?

• 2. Prewar Tensions

  ›

  Operation Highjump, launched on the 26th of August 1946, sent the largest American military force ever dispatched to Antarctica into those frozen waters: 13 ships, 4,700 men, and a fleet of aerial devices. The stated goals were training and cold-weather equipment testing. But underneath that framing sat a harder geopolitical logic. The United States was eyeing a territorial claim on the continent.

  The tension between competing national ambitions surfaced violently in Hope Bay on the 1st of February 1952, when Argentine forces fired warning shots at a British party. The United Kingdom responded within days by landing marines from a warship at the site. A year earlier, in February 1948, Argentina had sent a fleet of eight warships south, a show of force alarming enough that Argentina, Chile, and the United Kingdom signed the Tripartite Naval Declaration of 1949, committing all three to keep warships above the 60th parallel south.

  On the 17th of January 1953, Argentina reopened the Lieutenant Lasala refuge on Deception Island, leaving just two men behind: a sergeant and a corporal in the Argentine Navy. On the 15th of February, 32 British royal marines came ashore from HMS Snipe, armed with Sten machine guns, rifles, and tear gas. They captured both sailors, destroyed the Argentine refuge and a nearby uninhabited Chilean shelter, and held the Argentine men until delivering them to one of their own ships near South Georgia on the 18th of February. The British frigate then patrolled Deception Island's waters until April.

  When the United Kingdom filed lawsuits against Argentina and Chile at the International Court of Justice on the 4th of May 1955 to challenge their Antarctic sovereignty claims, both governments rejected the court's jurisdiction. Chile did so on the 15th of July 1955, Argentina on the 1st of August, and the cases were formally closed on the 16th of March 1956. The absence of any legal resolution left the continent's status as contested as it had ever been.

• 3. The Geophysical Year

  ›

  In 1950, the International Council of Scientific Unions began discussing a third International Polar Year. That conversation grew into something far larger. At the suggestion of the World Meteorological Organization, the scope expanded to the entire planet, producing the International Geophysical Year that ran from the 1st of July 1957 to the 31st of December 1958, drawing participation from 66 countries.

  At the ICSU meeting in Stockholm from the 9th to the 11th of September 1957, delegates approved the creation of a Special Committee for Antarctic Research, inviting the twelve countries conducting Antarctic work to send representatives for sharing scientific data. That body was later renamed the Scientific Committee for Research in Antarctica.

  The cooperative spirit of the IGY produced a practical outcome: those twelve nations collectively established over 55 Antarctic research stations. But the diplomacy around the scientific work was already fractious. Both Argentina and Chile insisted that any research carried out during the IGY conferred no territorial rights, and that all facilities should be dismantled once the event concluded. In February 1958, the United States proposed extending Antarctic investigations by another year. The Soviet Union went further, announcing it would keep its scientific bases open until its ongoing studies were finished. The tension over what would happen after the IGY ended was exactly the pressure that pushed toward a binding treaty.

• 4. Negotiating the Treaty

  ›

  President Dwight D. Eisenhower convened an Antarctic Conference, drawing together representatives of the twelve IGY nations in Washington to negotiate a treaty. The first phase ran across sixty sessions between June 1958 and October 1959, and produced no agreed draft. The second phase was a high-level diplomatic conference that ran from the 15th of October to the 1st of December 1959, when the final text was signed.

  The negotiation surfaced genuine rifts. The United States, the Soviet Union, the United Kingdom, and New Zealand all favored placing Antarctica under some form of international administration, ideally through the United Nations. Australia and the United Kingdom pushed for observer inspections. Argentina proposed a total ban on atomic explosions in Antarctica, which triggered a crisis that dragged nearly to the conference's final day. The United States and several other countries wanted to prohibit only those nuclear tests conducted without prior notice or consultation. Only after the Soviet Union and Chile joined Argentina's position did the United States withdraw its objection.

  The treaty that emerged prohibited nuclear testing, military operations, economic exploitation, and the filing of new territorial claims. It mandated on-site inspections to monitor compliance. The only permanent structures permitted on the continent would be scientific research stations. The original twelve signatories retained voting rights on Antarctic governance, with seven of the twelve holding territorial claims and the remaining five not. Countries joining later as consultative members had to demonstrate substantial scientific activity in Antarctica first.

• 5. The Environmental Protocol

  ›

  The treaty renegotiated in 1991-1992 by 33 nations produced the Madrid Protocol on Environmental Protection, which prohibited mining and oil exploration for 50 years. The Protocol on Environmental Protection was signed on the 4th of October 1991 and entered into force on the 14th of January 1998. It added five specific annexes governing marine pollution, fauna and flora, environmental impact assessments, waste management, and protected areas.

  The surrounding framework of agreements is substantial. Roughly 200 recommendations have been adopted at treaty consultative meetings and ratified by governments. The Convention for the Conservation of Antarctic Seals dates to 1972. The Convention for the Conservation of Antarctic Marine Living Resources entered into force in 1982. The Convention on the Regulation of Antarctic Mineral Resource Activities was signed in 1988 but never entered into force, overtaken by the stronger protections in the Madrid Protocol.

  A sixth annex to the Environmental Protocol, covering liability arising from environmental emergencies, was adopted in 2005 but has not yet entered into force. Forty-two parties to the full Antarctic Treaty System have also ratified the Environmental Protocol, leaving a portion of treaty members bound by the core agreement but not by its environmental extensions.

• 6. Governance and Legal Gaps

  ›

  The Antarctic Treaty Secretariat has been headquartered in Buenos Aires, Argentina since September 2004, when the Antarctic Treaty Consultative Meeting formally established it. Jan Huber of the Netherlands served as the first Executive Secretary for five years, until the 31st of August 2009. Manfred Reinke of Germany succeeded him on the 1st of September 2009. Albert Lluberas of Uruguay was elected at the 40th Antarctic Treaty Consultative Meeting in Beijing, China in June 2017.

  Decision-making power rests with 29 of the 58 current parties, the consultative members who hold voting rights. The other 29 parties may attend meetings but cannot vote. The yearly Antarctic Treaty Consultative Meetings serve as the primary governance forum. Less frequent Special Antarctic Treaty Consultative Meetings are convened for more significant matters.

  The continent's legal vacuum creates real complications. The area on the mainland between 90 and 150 degrees west is the only major land on Earth claimed by no country. As recently as 2015, Norway formally laid claim to the area between Queen Maud Land and the South Pole, ending the ambiguity around the interior of the Norwegian sector.

  The death of Australian astrophysicist Rodney Marks at the United States' Amundsen-Scott South Pole Station in May 2000 illustrated how jurisdictional ambiguity plays out in practice. Marks died while wintering over at the base. The National Science Foundation initially attributed his death to natural causes. An autopsy in New Zealand later found methanol poisoning. The New Zealand Police launched an investigation, but in 2006 the Christchurch Coroner reported that jurisdictional issues had blocked the issuing of warrants for potential American witnesses. The detective overseeing the case publicly criticized both the National Science Foundation and contractor Raytheon for their failure to cooperate.

• 7. The Year 2048

  ›

  Starting from 2048, any consultative party to the treaty may request a full revision of the treaty and its entire normative system. Any changes would require the approval of a three-quarters majority of consultative parties to take effect. That threshold is deliberately high. With 29 consultative parties currently holding voting rights, reaching three-quarters agreement across nations with competing territorial claims and divergent economic interests would require sustained diplomatic alignment.

  The seven countries that currently claim Antarctic territory include nations with overlapping claims: Argentina, Australia, Chile, France, Norway, New Zealand, and the United Kingdom each hold pieces of a continent that the 51 non-claimant parties refuse to recognize as divisible. A 2048 review could reopen exactly those questions that the 1959 treaty deliberately left frozen. The protocol banning mining and oil exploration runs for 50 years from its 1991-1992 renegotiation, making that restriction's future one of the treaty system's most consequential live questions.