An English patch for an NDS ROM is a patch that will make parts of the game in English. However, for that to exist, an English version of an earlier form of the game must exist, a big example being Pokemon Diamond/Pearl to Platinum. Anything that's the same in Platinum, when applied with a D/P English patch, will be English.
However, any new elements will be in Japanese, mainly dialogue. You can find patches on various sites and torrents. 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.