The year is 1,000 BC
The Rock Tribe, apart from liking very loud music, makes war by throwing rocks. In close combat they can use rocks as primitive (non-handled) clubs.
The Scissors Tribe naturally use scissors of varying sizes. Scissors can be thrown or used for hand-to-hand combat. These scissors are primitive, made of bronze and have a maximum length of about 1ft (30cm).
The Paper Tribe. Uh ... They make paper.
At one time or another any two of these tribes will be in dispute with one another. This causes them to go to war.
How can I save the Paper Tribe from getting massacred?