When a person is asked to "bring something", it is usually up to them which thing to bring. As in, bring a main dish, or side dish, or dessert, but it's up to YOU which one. If you have a dish you are comfortable making for a crowd, bring THAT.
A dish you've never even eaten....not a good choice for something you don't even have time to practice. Up to you, but I'd bring deviled eggs and sandwiches at such short notice.
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.