Forming Planet There is no one answer for this broad of a question. If the question is asking about planets in our solar system, the answer is both none and all of them. The planets are constantly evolving and before our Sun becomes a red giant and consumes the first half of the solar system, it is quite possible that more planets may have developed out of the Asteroid Belt, the Kuiper Belt, or the Oort Cloud.
If asking about outside our solar system, the answer could be put like this: there are billions of galaxies with hundreds of billions of stars, each of which could have at least one planet orbiting it, but could also have several. Accepting that one of every 1,000,000 stars has at least one planet and one in 1,000,000 of those have three or more, then the number will still be an exponential number so massive that it would perfectly reflect the ridiculousness of fathoming numbers in astronomy.
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.