War gaming was introduced into the Naval War College some 80 years ago. In those early days there were three types of games: the duel, the tactical, and the strategic. The duel game simulated a conflict between two battleships; the tactical game, the interactions between two fleets; and the strategic game simulated a naval campaign.
McHugh, Francis J.
"Staff and Faculty: War Gaming and the Navy Electronic Warfare Simulator,"
Naval War College Review: Vol. 20
, Article 3.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol20/iss3/3