Argentine Antarctica mainland. Argentina was the only nation to have an Antarctic base for 40 years until the British built a base on the same islands. Argentina bases its claims on this sector of Antarctica on the following grounds: Argentina's claim to the Antarctic Peninsula overlaps with the Antarctic claims of Chile, 53°W to 90°W, and the UK claims, 20°W to 80°W. Currently, there are no attempts by Argentina or any other country to enforce territorial claims in Antarctica. See List of Antarctic territorial claims. None of these claims have international recognition and have been suspended by the Antarctic Treaty in 1961.
Princess Elisabeth Antarctica Princess Elisabeth Antarctica Princess Elisabeth Antarctica, located on Utsteinen Nunatak in Queen Maud Land (), is a Belgian scientific polar research station, which went into service on February 15, 2009. The station, designed, built and operated by the International Polar Foundation, is the first polar base that combines eco-friendly construction materials, clean and efficient energy use, optimization of the station's energy consumption and clever waste-management techniques. Testing phase in Brussels and building construction in Antarctica was coordinated by Belgian main contractor BESIX. The station is built against a ridge (The Utsteinen ridge) that is exposed to gales of up to