Overview:It's the next step toward invading Japan's Home Islands- invading Okinawa, and it begins April 1st. Advances are easy by land, but at sea the kamikaze menace is in full swing. In Burma, plans are made to liberate Rangoon; in the west hundreds of thousands of Germans are surrounded in the Ruhr; and in the east, the Soviets begin assaults on Königsberg and Vienna.