I think it’s Hans island. We’ve been locked in a vicious battle with the Danes over it for decades now.
“The calm diplomatic waters grew choppy in 1984 when Canadian troops visited the island, planted their nation’s flag and left another symbolic marker as well: a bottle of Canadian whisky.
The Danes couldn’t let that stand. The country’s minister of Greenland affairs soon arrived on the island to replace the offending Canadian symbols with a Danish flag and a bottle of Danish schnapps, along with a note saying “Welcome to the Danish island.”
Thankfully there may just be a truce soon though:
https://www.cbc.ca/news/canada/north/canada-denmark-battle-ownership-hans-island-1.4679142