Less than they think they do. Consider this; if some other people in the name of some other religion marched on and invaded Mecca ,,,,,, do you think the Muslums in the world would give up even 1% of their claim to it ,,,,,,, even after 1400 years later? The Jews have not just taken back control of Jerusalem and Israel from the primarily islamic "Palestinians / former Jordanians" they have also taken it back from the spawn of every other invader group that squatted there because of the unholy Roman Empires actions to exile and kill the Jews.
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.