UK United Kingdom Flag

The national flag of Great Britain, more commonly known as the Union Jack, is a powerful symbol of the United Kingdom’s history and unity.¹ Its origins lie in the unification of the kingdoms of England and Scotland under King James I in 1603.

The first version of the flag, created in 1606, combined the red cross of St. George, representing England, with the white saltire of St.² Andrew, representing Scotland.³ This design symbolized the union of the two crowns.

In 1801, following the Act of Union that united Great Britain and Ireland, the flag was updated to include the red saltire of St. Patrick, representing Ireland.⁴ This created the flag we know today, with its distinctive pattern of red and white crosses on a blue field.

The term “Union Jack” is believed to have originated from the practice of flying the flag on the jackstaff of ships, a small flag at the bow.⁵ Over time, the term became synonymous with the flag itself.

The Union Jack has become an iconic symbol, representing the history, culture, and values of the United Kingdom.⁶ It is flown on government buildings, used by the armed forces, and proudly displayed by citizens across the country and around the world.⁷