The national flag of the United Kingdom and Northern Ireland
This is the official flag of the United Kingdom. It is called the Union Jack or the Union flag.
The dimensions of the flag are 2:1. This means that it should be twice as wide as it is tall.
The flags that are joined together to make the Union Jack
The flag of England known as the red cross of St George.
The flag of Scotland known as St Andrew's cross or the Saltire
The flag of Northern Ireland known as the red saltire of StPatrick.
The Union Jack or Union Flag is the national flag of the United Kingdom. It has been in use since 1801.
The flag of Wales, whilst well known throughout the UK, is a relatively new flag having been in use since 1959.
It is said that the Union Jack is comprised of elements of the flags of England, Scotland and Northern Ireland but not Wales. This is not correct though because at the time of the Union Jack's creation, the cross of St George was used to represent both England and Wales.