Short answers, pulled from the story.
The United Kingdom is an island nation located in northwestern Europe. It comprises England, Scotland, Wales, and Northern Ireland and has been inhabited since the Neolithic period with evidence of human presence dating back 30,000 years.
The Treaty of Union of 1706 was ratified on the 1st of May 1707 to unite the Kingdom of England and the Kingdom of Scotland. This event created the Kingdom of Great Britain and established London as the capital of the unified state.
The British Empire reached its height in the 1920s and encompassed around a quarter of the world's landmass and population. It was the largest empire in history and built its global hegemony on naval dominance, economic power, and technological innovation.
The First World War lasted from 1914 to 1918 and resulted in 2.5 million British casualties. The Second World War began in 1939 and saw Britain defeat Nazi Germany with the help of the Grand Alliance formed in 1941.
King Charles III serves as the monarch of the United Kingdom and Sir Keir Starmer serves as the prime minister. The country maintains a population of over 69 million people and operates as a constitutional monarchy and parliamentary democracy.