Шаблон:Флагификация/Великобритания и Северная Ирландия

I don't have access to the specific context about "Template:Country data United Kingdom" that you're referring to. To write an accurate overview based only on provided information, I would need you to share the actual template documentation or context about this Wikimedia template. Could you provide the context material you'd like me to base the overview on?

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