There is a movement in Canada, a nation not known for its imperialist ambitions, to
annex the Turks and Caicos islands. The islands are a British Crown Colony (i.e., essentially one of the few remaining parts of the British Empire; they are written up in Simon Winchester's
Outposts as such), though, the site argues, closer ties with near-neighbour Canada, perhaps leading up to union, would have advantages for both sides (the Canucks would get a warm, sunny province and a foot in the door of the Caribbean/Latin American market (not to mention a forward base for their eventual invasion of the USA), while the islands would get a reduced cost of living, increased investment, expanded educational opportunities and subsidised health care. (via MeFi)
The swedes did the opposite thing a couple of hundred years ago and gave away our sunny caribbean colony to the french. Don't ask me why though, I would also like a sunny place to live with a working healthcare system.