Enemy on the Horizon The Black Baron Game Company - Review by thrasher - What you get Rules book (12 pages) 40 plastic playing pieces The Playing Pieces Enemy on the Horizon comes with 40 new plastic playing pieces - 8 for each of the 5 nations: Click on the image for a larger picture The Rules The rules exist of three parts: New Units, Changes to Existing Units and Other Rules Changes and Clarifications. We will take a look at all three. New Units Enemy on the Horizon introduces three new units to the game: commandos, destroyers and artillery. New Rules for Existing Units Other Rules Changes Address