> Let's say you are the leader of a border post, and you leave your post unmanned allowing the enemy in - of course you will be held accountable.
Yes! Because if you are a member of the state operated defense force, then defense is your responsibility. The state is responsible for defense.
If on the other hand, you are a civilian who just happens to own property near a border, you have absolutely zero obligation to defend the border yourself. The same is true for businesses near a border.
> We are at war with Russia and China on a nation-state level and on top of that we also have cybercrime gangs.
Man, if only society had a way to form some sort of governance body which could provide defense against other nations and provide some sort of justice system to protect against and punish crimes. Oh well, I guess its every man for themselves ¯\_(ツ)_/¯