Union Jack Flag - Official UK National Flag | High-Resolution Image #123451 (License: Personal Use)

The Union Jack is the national flag of the United Kingdom, composed of three overlapping crosses: the red cross of St George (England), the white diagonal cross of St Andrew (Scotland), and the red diagonal cross of St Patrick (Northern Ireland). Its distinctive blue field, red and white stripes create a symmetrical and historically rich emblem adopted in its current form in 1801. The flag is used officially by government institutions, at royal events, and internationally to represent British identity.

This image is commonly used on government websites, educational resources, travel guides, and news articles covering UK-related topics. It serves users seeking visual representation of British nationality, historical symbolism, or official documentation requirements.