That was me. There are three turns per year. Both movement and combat are very abstracted. Troops are organized into armies, and a player has a maximum of twelve armies. Armies have unlimited strategic movement in friendly territory before combat begins.
Production is straightforward, and is based on controlling industrial centers on the map.
The intermediate and advanced games add a lot of elegant chrome for amphibious forces, tactical and strategic air, morale, technological research, and atomic weapons. Games are my entire waking life.