<P> The Australian flag uses three prominent symbols: the Union Flag, the Commonwealth Star (also the Federation Star) and the Southern Cross (or Crux). </P> <P> In its original usage as the flag of United Kingdom of Great Britain and Ireland, the Union Flag combined three heraldic crosses which represent the constituent countries of the United Kingdom (as constituted in 1801): </P> <Ul> <Li> The red St George's Cross of England </Li> <Li> The white diagonal St Andrew's Cross of Scotland </Li> <Li> The red diagonal St Patrick's Cross of Ireland </Li> </Ul> <Li> The red St George's Cross of England </Li>

What do the colours on the australian flag mean
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