See: Canada and Denmark's epic battle for Hans Island. Hans Island is the smallest of three islands not far from Greenland's coast, and Canada and Denmark have

See: Canada and Denmark's epic battle for Hans Island. Hans Island is the smallest of three islands not far from Greenland's coast, and Canada and Denmark have been fighting over it for years. War ships from both sides patrol the area, and when they encounter each other they...show their flags. When the soldiers leave the ships they...take the other side's flag down and raise their own. Sometimes they leave a bottle of whiskey too.