Union Jack Flag - Official Flag of the United Kingdom #151042 (License: Personal Use)

The Union Jack is the national flag of the United Kingdom, formed by overlapping the red cross of St. George (England), the white saltire of St. Andrew (Scotland), and the red saltire of St. Patrick (Northern Ireland). Its distinctive red, white, and navy blue pattern reflects centuries of political union and shared identity across the constituent countries. The flag is flown on government buildings, embassies, and during national celebrations and sporting events.

This image is commonly used on official government websites, educational resources about British history, travel guides, news articles covering UK-related topics, and international event coverage where national representation is required. User intent typically includes learning about national symbols, verifying flag authenticity, or sourcing high-quality imagery for publication.