The Chair is correct here...of course we invaded OZ ! We used it as a penal colony, to rid Britain of its petty criminals, who were proving to be a nuisance to our growing middle class.
People, including young children were sent to this penal colony, for committing the pettiest of crimes.
I recommend everybody to read "The Fatal Shore" by the late Robert Hughes
::
https://en.wikipedia.org/wiki/The_Fatal_Shore
To quote the first line of the above Wiki entry :::
"The Fatal Shore. The epic of Australia's founding by Robert Hughes is a history of the birth of Australia which came out of the suffering and brutality of England's infamous convict transportation system"
And the aboriginal people continued to be treated appallingly, by the Oz Government up until recent times, and matters are still not perfect now.