People who come from other countries with proper documents get a green card. After three years if they are married to a citizen, or five years if not, they can do paperwork to become a citizen. That means they pass a test to show they know enough about the US, swear to be loyal to the country, and some makes sure they are good people.
Then they make a promise to the US and they become citizens.
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.