The flag of Great Britain, represented by 🇬🇧, consists of a combination of the flags of England (St. George's Cross), Scotland (St. Andrew's Cross), and Northern Ireland (St. Patrick's Cross). It features a red cross on a white background for England, a white diagonal cross on a blue background for Scotland, and a red diagonal cross on a white background for Northern Ireland. The flag symbolizes the unity and historical heritage of these nations within the United Kingdom.