I agree with that statement, but don't forget that this preclude 1st and 2nd world war, plus Korea, Indochina, Vietnam, Suez, Algeria, Congo, Lebannon, Chad, Yugoslavia, Afghanistan, Iran, Iraq, Russia, China, Tibet, India, Pakistan, Israel conflicts.
All in all, that means almost all contemporary games are forbidden. The country I'm living in (France) has known less than 20 years of global peace in the last 200 years.
Runequestement votre,
Kloster