evidence: Until 2022, Denmark and Canada argued over which country owned Hans Island. Denmark's claim was based on an expedition that included Danish participation and which named Hans Island in 1853, that geologically the island is part of Greenland, and that it is slightly closer to Greenland than to Ellesmere Island. Canada maintained that Denmark’s claim had lapsed because Denmark failed to enforce its sovereignty. Canadian and Danish cartographers have depicted the island as part of their respective countries (see also History of Cartography in Canada). In 1973, the two countries agreed on a maritime boundary dividing Nares Strait between Ellesmere Island and Greenland, but they could not agree on the ownership of Hans Island. During the Second World War, Canadians operated a temporary scientific station on Hans Island and in the early 1980s, Dome Petroleum was active there. When Tom Hoeyem, Denmark's minister of Greenlandic affairs, personally planted a Danish flag on the island on 28 July 1984, the Canadian government protested. Since 1984, both countries have sent officials to the island to raise flags and claim the land. Canadians would raise the Canadian flag and leave behind a bottle of whisky for the Danes; they in turn would visit, raise their flag and leave behind a bottle of schnapps (akvavit). This good-natured "whisky war," as it was often called, lasted for years.