The Obsolete Legacy of Antarctica
... Approval is not clear-cut, given opposition from the United States, Canada and possibly Norway. As a result, Russia might well have to unilaterally declare its sovereignty... ... and in 1939 – over Queen Maud Land between longitudes 20°W and 44°E. Chile that in 1940 announced the establishment of Chilean Antarctica between longitude 53° and 90°W. Argentina that in 1943 proclaimed Argentinean Antarctica between longitudes 25°W... ... the Antarctic involving the use of lands beyond its borders. For example, in 1986, Brazil declared its zone of interests in the Antarctic between longitudes 28°W and...