Nukes have already been covered on here. Here is the link to my response:
https://forum.freecapitalists.org/t/an-cap-and-nuclear-bombs/21019/9
And here is the relevant text:
A gun is legal. Pointing it at a random person is illegal. Why? Pointing it is a threat. What constitutes a threat? A reasonable realistic 3D scenario which endangers others.
Thus, pointing a gun at the sky and shooting is generally not a threat. Hence, the use of a gun is inherently not illegitimate.
Now consider nuclear weapons. What is a reasonable realistic 3D scenario which would constitute a threat? Anything. There is no “pointing” of nuclear weapons.
If you are in the middle of a mall with a gun and you want to threaten others you can 1) whip it out and point it 2) Yell “I will kill you all”
We all know scenario 2 is illegal anyway.
Scenario 1: How would this apply with nuclear weapons? It can’t. There is no whipping out of a nuclear weapon. Because with guns, to create a threat you aim. With nuclear weapons, there is no aiming.
The reasonable 3D idea of a threat flies out of the window with nuclear weapons, because their existence is a threat due to their nature of not being able to be contained. It’s like carrying a gun sphere, where there is a gun pointing out at every direction. By carrying it around in public, you are inherently aiming at everyone you walk by.
Thus, the existence of a nuclear weapon such that people involuntarily live within its blast radius is illegal. This means that you can own nuclear weapons on Mars if you’d like, or on the Moon, or in Australia if you own all of it. Yet as soon as you bring it within blast radius of people, it becomes a threat and is illegal.
and also
“a nuclear weapon is like walking through a mall with a sphere made of guns pointing in all directions. It’s like constantly pointing a gun at someone’s head. Now, if you can find a way to contain the explosion in nuclear facilities, power to you, you can have one. If you want to have one 500 miles away from all other living beings, have it. If you homestead a piece of land with no one in the blast radius and then people settle, their problem. If the people within the blast radius authorize you to have the bomb, glory to you. But you can’t simply waltz into any city with a bomb.”
Tl; dr - a nuke is like a sphere made of 1000 guns pointing out of the center. It is always a threat to those around you in the blast radius, and hence (typically) illegal. You cannot join a new community and carry in a nuke unless literally everyone allows it. You can have a nuke when all civilization is outside the blast radius, however, and if you’re the first person to settle in an area which is otherwise uninhabited in the blast radius, then anyone who settled later is the one who has to deal with your homesteading of the blast radius.