Wargames are games that depict military actions. Wargames are set in a variety of timelines, from the Ancient period to present conflicts and even in the future. Thematically, Wargames cover everything from actions between small units on a very small board to larger, extremely detailed conflicts and even global-scale wars. Although most Wargames are based on historical situations, there are Wargames based on fantasy or science fiction, as well as Wargames based on hypothetical but historically-based situations (e.g., nuclear war between the Soviet Union and the USA). Probably the most popular period for Wargames is World War II, followed by the Napoleonic Wars and the American Civil War. However, Wargames cover a vast range of conflicts, and if you are interested in a particular war you are quite likely to be able to find a game that covers it in some way.