Chile is a member of both United Nations and the Union of South American Nations (Unasur) and is also now in the OECD, the group of the “most developed” countries by current international standards, becoming the first country in South America to do so. The notion that Chile is among the “most developed” nations continues to be debated, especially by Chilean nationals.
Argentina’s and Chile’s claims to Antarctica overlap and neither is based upon the discoveries of either nation. Chile also voices a claim to a 1.25 million square kilometre portion of Antarctica, but given the terms of the Antarctic Treaty, no country’s territorial claims to Antarctica are ever recognised or permitted to be exercised at any time. However, Chile has an active presence in the Antarctic peninsula, and cooperates closely with other nations in activities in the Antarctica.