I pondered this question a bit and decided on "Yes" vs No. What you know best should be easy to teach, but it often isn't. Why?
Because you know it so well that you take for granted the things you know and others might not. Detail is often not as communicated on the assumption that the other people know what you are talking about. It is easy to miss a step that you consider part of the previous step or the next step; when indeed it should be a step of it's own.
Putting instructions into written or verbal form requires every single action to be described and explained. When it is something "you know best" it seems like overkill to you but is valuable information to the student.
Teaching anything in itself is hard. The old saying that if you really want to understand something, try teaching it to someone else is true. Teaching what you know best often leads to your greater understanding of what is being taught.It seems that no matter how long I teach certain things, the more I learn about the subject being taught.
Even the most basic thing, like throwing a ball, provides insight into so many other things. Real is teaching is very hard, but it is also so very rewarding to both the student and the teacher.
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.