Australia was white settled 234 years ago. We lived in peace until we were involved in everyone else's problems on the other side of the world first, then closer to home when Japan thought we were worth invading.
Before that, I suppose the varying Aboriginal tribes from the first nations people had their grievances too. Nature itself has it's own way of preying on the lesser equipped.
The planet itself is always in flux, volcano, tornado, tsunami, earthquake and the rest. The planet we live on is Schizo. Battling, or living alongside nature is about survival. I guess it boils over into surviving with one another.