Duel of Eagles is a medium-complexity wargame on the Battle of Mars-la-Tour, in the Franco-Prussian War. This battle is notable for having one of the last successful cavalry assaults in modern warfare. This is a chit-pull game. The chits are either Activation Chits, which activate all units within the indicated corps, or Event Chits, which each contain two possible events which the player can chose between. Each turn both players draw from the chit cup until all chits have been used or there are no remaining HQ's on the map.