It is a great pity that so many of those havens are shielded by western countries too. The UK has the crown dependencies (Jersey, Guernsey, various Caribbean ho

It is a great pity that so many of those havens are shielded by western countries too. The UK has the crown dependencies (Jersey, Guernsey, various Caribbean holdings), the US has various vassal states (as I understand it), France is the same, then there are the microstates like Monaco. None of it could exist without the tacit consent of large countries that have legal or diplomatic sway over these jurisdictions.