The document discusses the flags that represent the countries of the United Kingdom. It states that the flag of England is represented by the St. George's Cross, the flag of Scotland by the St. Andrew's Cross, and the flag of Northern Ireland by the St. Patrick's Cross. It notes that the flag of Wales features a red dragon on a white and green field and is not represented in the Union Jack, which is made up of the flags of England and Scotland with the addition of the St. Patrick's Cross in 1801.