Naval Battle Group is a modern naval wargame designed to be played with naval miniatures. Game scale (both time and distance) is variable, and is determined prior to play, while time scale can be changed based on circumstances. Its rules tell how individual ships and aircraft move, detect enemy contacts, and attack them. Weapons inflict realistic effects, and proper naval tactics produce accurate and believable results. Game-play is with dice, and no game boards are used - a protractor and tape-measure are used to measure distances and angles. A calculator is useful for determining distances based on the scale used. Included are statistics for real-world surface, subsurface, and air units, allowing for any number of historical or what-if scenarios.