Follow-up to Iron Bottom Sound. The Royal Navy in action against Germany & Italy in WWI & II. Also has US, French & Soviet ships. Surface ship only. Hex and counter, but lots of tables and status sheets so it has a miniatures feel. Each hex represents 600 yards for night actions and 1500 yards for daylight actions. Each turn represents 3 minutes of real time for night actions and 7.5 minutes for day battles. The game scale is not a straight doubling of the scale because, on the average, friendly ships tend to sail closer to each other at night and further apart during daylight.