Union Jack Flag - Official UK National Flag | High-Resolution Image #1620800 (License: Personal Use)

The Union Jack is the de facto national flag of the United Kingdom, formed by superimposing the red cross of St George (England), the white saltire of St Andrew (Scotland), and the red saltire of St Patrick (Ireland). Its distinctive red, white, and blue design has been in use since 1801 and remains a globally recognized symbol of British identity, sovereignty, and heritage.

This image is commonly used on government websites, educational resources, travel guides, and cultural content about the UK. It serves users seeking official imagery, historical context, or visual representation of British nationality and institutions.