Why not station a platoon of tanks on the Islands?
That would be a 'troop' of an asset that according to the Telegraph, we don't have.
All that is needed is one 'Falklander' on say Weddell Island to indicate that they want to be Argentinian, an 'Argentinian' settlement is established and the whole discussion about sovereign land and its 'take back' is thrown into the air, as there is now way that
legally (as if that's made a difference in the past!) any British force could invade that particular island!