Great Britain is part of the sovereign state of the United Kingdom (of Great Britain and Northern Ireland)
The island of Britain is sovereign territory of The United Kingdom of Great Britain and Northern Ireland.
Great Britain/UK
The United Kingdom, or to give its full name, 'The United Kingdom of Great Britain and Northern Ireland'. The people are British in international law.
Fiji is a country of its own with its own government, laws and legislation. Fiji gained Idependance from Great Britain in October 10, 1970.
The Antilles are a series of islands in the Caribbean, no one country owns them. Each island is a country.
Denmark
France.
Italy
Denmark.
Italy
Greece
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probably Great Britain because their empire once was one third of the worlds land