I presume you recall the Falklands War of 1982. Argentina has long thought of the Falklands Islands as theirs, mainly based on them being so close to Argentina never mind the fact that the British established sovereignty in 1833 and that the Falklanders themselves will tell anyone who stops to listen that they consider themselves British. No matter. Argentina still calls the islands theirs. They insist the islands be called the Malvinas, but nobody outside of Latin America does that because nobody outside Latin America considers them part of Argentina.
Oh, and they found oil nearby, so needless to say, Argentina has been particularly vocal about it lately.
In an effort to maybe get them to back off for five freaking minutes, the Falklands is holding a referendum to determine their sovereignty. Everyone expects them to say that they call themselves British. Nobody expects Argentina to listen to a word of it; in fact, they've already stated they won't listen to a word of it. They said it could only be resolved between the British and Argentine governments.
The British, for their part, have said they'll go along with whatever the Falklanders want. The Falklanders are going to say they're British and the only real question is by what margin. Argentina has said they won't listen to the Falklanders. And the circle of life is complete.