Fields of Fire is a solitaire game that placed you in the role of a rifle company commander in action ranging between World War II and the present day. The game is diceless and card based, and there are two different types of card decks used in play. There are four separate campaigns, and each has its own Terrain Deck based on the terrain found in that campaign. You use the terrain deck to build a map for the various missions your company must perform. The Action Deck is used in each campaign and serves many purposes: controlling combat, command and control, and carious activity attempts. The unit of the company are counters representing headquarters elements, infantry squads, weapons teams, forward observers, and individual vehicles and helicopters. Each mission is a single game, and seven missions are strung together to form a historical campaign during which you must manage experience and replacements. A mission can be played in about one to two hours. Because the campaigns span three eras, you can experience the evolution of the US rifle company in equipment. This game is based on four actual campaigns fought by units of the 9th US Infantry Regiment in World War II, Korea and Viet Nam. "Keep Up the Fire" is the motto of the 9th Infantry, known as the "Manchus" for their service in the Boxer Rebellion.