Tsushima is a tactical naval game simulating the battles that were fought in the Sea of Japan in 1905 during the Russo-Japanese War. The game was first published in Strategy & Tactics magazine #130.
Game scale is individual capital ships with destroyer and torpedo boat flotillas, hexes represent 1000 meters, and each turn represents 7.5 minutes of real time. A number of scenarios are provided, each with their own victory conditions.