"Canada and Denmark have been at war since 1984.
Sort of.
Hans island: disputed since the 1930's, but since 1984 each country's military visits and erects their flag taking down the other flag. With it a note welcoming the next visitor to Canada or Denmark.
Canadians leave whiskey, Danes leave schnapps.
And the cycle continues."
All this was loooong before 'we' became a kingdom in it's current form