About defence against nuclear weapons, see
in the part 10. https://learntalents.blogspot.com/2021/09/skills-of-christmas-gnomes-10.html
entries J37., J38., J39. and J51.
Obs. It is not in the book, since it includes only the nine first parts. It is also a too war like subject of somebody's main interest to be included in a book about Christmas gnome like life.
