To my mind manga cannot be separated from their country and culture of origin. Everything about them, from the way creators tell stories to the symbols and gestures involved are created with a Japanese audience in mind. Those outside Japan can learn all of the sound effects and references, but most readers will not instinctively understand every joke or implied meaning simply because the story comes from an environment we didn't grow up in.
That being said, there are elements that make manga markedly different from the comics and graphic novel titles here (now on to the sweeping generalizations!). Manga tells stories with more images and more panels per page. The reader is expected to put together a lot more panels in a less traditional order than the transitions and layouts found in many mainstream Western comics.
That doesn't make it better than Western comics, just different, and something that readers new to manga have to learn. While stories are meant to be read quickly, during ... 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.