The uselessness was probably why neither country actually cared and just had fun, turning the uselessness into a useful fun thing to tie their servicemen in the far north together!

Canada and Denmark had a very long territorial dispute (1973-2022) over Hans Island: https://en.wikipedia.org/wiki/Hans_Island

It was obviously a friendly dispute, but they did lower the other countries flag and raise their own, which could be considered a war declaration. They both left liquor every time they went to Hans Island to raise their flags. (Canada left whiskey, Denmark left snaps)

It has its own wiki article: https://en.wikipedia.org/wiki/Whisky_War

Not as sad and cringe as this comment though.