An operational level simulation representing commerce raiding in the Indian Ocean during WWII. Each ship counter is one ship, airplane counters 1 to 3 planes, minefields 100 mines, a hex is 150 miles and a turn is "several" days. The Axis player attempts to find and sink shipping while the Allied player attempts to find and sink the raider. Rules are included for air search and air-ship combat, submarines, capturing ships, weather, mines, etc.