There are a lot of similarities between America and Australia in this respect. When Captain Cook and his team reached Australia they had some fights with the local people. In an encounter in Hawaii, an indigene killed Captain Cook. Some such isolated incidents were used as the pretexts by Europeans to unleash violence against the indigenes in the 19 and 20 centuries, 90% of the local people died of various diseases that the Europeans had brought with them. Moreover, in their fight with the colonialists, the indigenes lost their land and resource.
The British made Australia a place to which they could exile their criminals. Earlier they sent their criminals to their American colonies. When America got the independence they chose Australia for that. Among the early settlers in Australia, a good number were criminals from the UK. These exiled criminals were let free in Australia on the condition that they would not return to England even when they finished their jail terms. These criminals had no regret to drive away the indigenes from their land and forcefully occupy it.
