I am not an expert on this. I suspect it varies by nation. Several years ago, I worked with some clubs in Ohio, USA to form two non-profit organizations with interlocking boards of directors.
One was non-profit educational, the other was non-profit social. We wanted to do stuff that no one non-profit system would support, but this approach would. Think of "Friends of the Library" and "The Library" "The Library" wants to get resources, but non-profit rules prohibit the ways we wanted to use to get them.
"Friends of the Library" is a different kind of non-profit organization, allowed to do all kinds of ways to get the resources needed by "The Library" We had 3 people (I was one of them) to register the two companies, then we went to the clubs & there were votes to select the board members, and approve our registration. I imagine a wholly owned same way ... just register the new company, then the people who registered it, get with the owners that will be the wholly owned, and register ... more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.