'War Level 0'...why is that?
There is no 'Game Level 0', and there already is "War Protection: Secured Mode" for all world except Fearless Blue.
Maybe there are some that would like --1 country-- at 'War Level 0', but that is exactly the same as "War Protection Secured Mode", so it is mostly redundant.
As suggested by others, "War Levels" should be like "Game Levels" and provide for achievements. Using them as a part of the war-related score, rank, indexes, and 'Simcountry' (leaderless) fighting level, when attacking a country, generally make sense. Federations already exist, and have for some time, to help protect countries not in "War Protection" of any kind. See the other topic in the General area of the forum for more details.
But, using "War Levels" to restrict wars in general doesn't really make sense, because there are already other ways to manage that, like "War Protection: Secured Mode" or "War Protection: [Temporary]".
Also, this connects to the "Natural
Resources Search" corporation that was planned to be introduced a long time ago and disappeared. The idea there was to limit the corporation types per country based on the natural resources or other factors in each country. If some limitations and restrictions were placed on these "peaceful countries", then it might make sense..like limited population, limited corporations, limited natural resources, limited locations (fewer choices where they could be located on the world map), and limited Empire size (like "single-country Empires").
Having 10 or more countries in an "Empire" at "War Level 0" doesn't make any sense whatsover, unless maybe 1 world were designated a "Peace World" where it would be no war at all. Nevertheless, Fearless Blue probably should return to a "War World" where it would have no war level restrictions (like it was before the change), since the 'Gamemaster' from the world description page labels it a "War World" with lower "Asset Security".
Not sure what the exact solution would be, these were some points that were made for further discussion, and not trying to figure out a solution now. But, maybe some ideas could be organized and presented in the next "Jozi Chat".