Because of Sarstedt's appearance on the U.S.S. Enterprise NCC-1701-D, it is possible, though unsupported by dialogue in Voyager, that the command division officer transferred to U.S.S. Voyager as a Crewman, in which case the name of the command officer is William McKenzie as established in Voyager, but it is implausible that someone with officer rank should seek a transfer at a lower rank and from the flagship to a smaller less prestigious vessel as Voyager, unless he was demoted for some reason and transferred to remove him from, say, the area of his transgression but by now this is becoming more and more speculative. But due to the implausibility and lack of evidence in Voyager that is clearly visual evidence or in the form of dialogue, this is why canon sources and therefore I myself ignore the possibility that McKenzie previously served on the Enterprise-D, unlike the dialogue that seems to be evidence supporting the belief that Ensign Russell served on that Starship before ... 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.