POP QUIZ: What is the proper term for a mega-wealthy civilian who attempts to seize totalitarian control of the entire planet and human population, causing massive economic devastation in the process?
ANSWER: Such a person (or couple) would be termed NON-STATE, NON-UNIFORMED ENEMY BELLIGERENTS. They would be tried for capital crimes against humanity and peace.
Interestingly, the Geneva Conventions would NOT apply to such a person (or couple). Geneva only applies to wars between sovereign states.