The flag of the United Kingdom, commonly known as the Union Jack, consists of a red cross on a white background (the cross of Saint George), a diagonal white cross on a blue background (the cross of Saint Andrew), and a red diagonal cross on a white background (the cross of Saint Patrick). The flag represents the union of the countries of England, Scotland, and Ireland under one monarch.
The flag of the United Kingdom, commonly known as the Union Jack, consists of a red cross on a white background (the cross of Saint George), a diagonal white cross on a blue background (the cross of Saint Andrew), and a red diagonal cross on a white background (the cross of Saint Patrick). The flag represents the union of the countries of England, Scotland, and Ireland under one monarch.