The first of these final phases is to check for units out of supply. Those units which are out of supply are then considered to be isolated. Any unit which was isolated previous to this segment is now attrited. The next phase, units are refitted. The air game consists of an optional rules section and is simulated at a fairly abstract, but appropriately realistic, level.
Bombers can fly missions against supply sources, fortifications, and other airbases.
Game balance, at times, appears to be somewhat better than it should be, historically speaking. For instance, in the campaign scenario, the Italians can make considerable eastward progress, early on, until supply becomes a limiting factor. But what was an historical rout by the Commonwealth can actually become a rather close contest. A competent general can do a lot of good for the Italians. On the other hand, the correct sequence of random events and a poor wargaming opponent can help contribute to making the game more historical - at least in the early going.