We can say that Aboriginal people throwing spears at the first white man was an act of sovereign Peoples in defense of their lands, territories and dominions.
If we are to examine the political legal action by the people and their spear throwing, it was a military exercise authorised by their law and customs which, in total, represented an Act of State on behalf of the People. They were exercising their sovereign right to defend what was theirs. [node:read-more:link]