Absolute pacifists who also assert their belief in property rights … are caught in an inescapable inner contradiction: for if a man owns property and yet is denied the right to defend it against attack, then it is clear that a very important aspect of that ownership is being denied to him. To say that someone has the absolute right to a certain property but lacks the right to defend it against attack or invasion is also to say that he does not have total right to that property.
Murray N. Rothbard
Ethics of Liberty, p. 77
Hans-Hermann Hoppe, an Austrian school economist and libertarian/anarcho-capitalist philosopher, and Professor Emeritus of Economics at UNLV.
The Great Fiction by Hans-Hermann Hoppe: https://cdn.mises.org/the_great_fiction_2nd_ed_rev.pdf