Answer:
I call the trees my home, yet I never go inside, and if I ever fall off the tree I will be surely be dead.
War fought with pieces on a board.
They are Dark, and always on the run. without the sun, would be none!
What can go up but never come down?
You can't keep this until you have given it. What is it?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?