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.
Airport-to-airport mutual aid WESTDOG has a primary coordinating airport and a secondary coordinating airport that serve one-year terms, with the secondary airport moving up into the primary role after one year. Both DOGs have created permanent communications systems for the dissemination of alerts and the management of volunteered resources and matching of volunteers to need. SEADOG and WESTDOG communicate closely and collaborate. They had their first joint SEADOG-WESTDOG Annual Conference at Dallas/Fort Worth International Airport on 16–18 October 2013. There are no DOGs in any other region of the United States (IEM et al. 2012). However, airports outside the southeastern and western states