Answer:
War fought with pieces on a board.
Once you have it, you want to share it. Once you share it, you donβt have it. What is it?
What is it that given one, you'll have either two or none?
Touch this and you'll regret it. But if it's cold, you won't forget it. What is it?
The eight of us go forth not back to protect our king from a foe's attack. What are we?
Two little holes in the side of a hill. Just as you come to the cherry-red mill.