It depends on your application template. Some (Tab Bar, Navigation) are tied to iPhone devices only, some such as Split View are tied to iPad devices only, while the "Window based" template allows you to pick iPhone, iPad, Universal.
Select the type under new project, and press next. Under device family you choose iPad.
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.