In 1964, historian Lt. Col. Joseph B. Mitchell published a compact book, Twenty Decisive Battles of the World, an expansion of Sir Edward Creasy's most famous work from a hundred years past, updating it into the 20th Century.

Turning Point Simulations (TPS), a division of LPS Inc, examines these 20 battles with a new series of boxed wargames. These games emphasize accessibility and playability, and come with hard-mounted maps and mounted, die-cut counters. Each battle is presented in a design of low complexity, but high challenge, from some of the industry's top designers.