The UK in the 1880s to now is a very large decline in world power. It might be the largest decline while remaining intact of any nation. In that respect it’s actually doing well
There's at least an Ireland-shaped gap in "while remaining intact".
Possibly also Malta, given the brief window of opportunity where they might have ended up with seats in Westminster, but I'm much less confident about that.
Possibly also Malta, given the brief window of opportunity where they might have ended up with seats in Westminster, but I'm much less confident about that.