1. No appropriate locking doesn't necessarily mean a world war will get triggered, but it might happen, and it would be a very bad thing, specially if it could be avoided, that your party started would hardly be of any consolation.
2. A locking system in place does not make much of a difference if there is no war, and much of the deterrent factor would probably still be there. If there is a nuclear attack, well, even if you are able to respond things will look quite grim, so it doesn't really make such a great difference (and it has to be seen how easy it is for your opponent to block retaliation).
2. A locking system in place does not make much of a difference if there is no war, and much of the deterrent factor would probably still be there. If there is a nuclear attack, well, even if you are able to respond things will look quite grim, so it doesn't really make such a great difference (and it has to be seen how easy it is for your opponent to block retaliation).