Union Jack Flag - Official UK National Flag | High-Resolution Image #148072 (License: Personal Use)

The Union Jack is the 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 blue field, red and white stripes create a balanced, heraldic design adopted in its current form in 1801. The flag represents the political union of Great Britain and Northern Ireland.

Used on government websites, educational resources, travel guides, and cultural content about the UK; ideal for pages discussing British identity, history, or international representation. Matches user intent for flag identification, historical research, or visual assets for presentations.