I would say nothing in particular just up their general feed ifnecessary there are so many different additives out there it just gets too much. As long as they get electrolytes or salt when the sweat a lot there is plenty of vitamins in the feed whether it be nuts or a mix. Oil is also good for them but not too much!
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.