Units in the game will gradually consume supplies, morale, and readiness while moving and engaging in sustained combat. A shortage of supplies will not only limit a unit’s ability to continue operating, but will also directly reduce its actual combat effectiveness. To maintain an offensive, players will need to establish a stable logistics network.

Friendly cities form the backbone of the supply system. Cities transport food, ammunition, weapons, and other equipment to the front through transportation routes.

Each army-level headquarters is assigned a supply source city. During each turn’s supply phase, subordinate units will attempt to obtain missing equipment required by their formations from the headquarters’ supply source, while also requesting food and ammunition to restore their condition.

You can manually change an army headquarters’ supply source city or allow the AI to assign one automatically. As long as a unit can connect to a valid supply route, it can recover a certain proportion of its supply, morale, and readiness based on its distance from the supply line. The closer it is to the transportation network, the more efficient this recovery will be. In the unit panel, players can view the unit’s current supply source, supply mode, and the actual amount of supplies received during the current turn.

Understrength units will prioritize better equipment when receiving replacements. For example, the 30th Division shown here lost seven rifle squads in combat. We can see that its parent formation, the 30th Army, is supplied from Taiyuan. Taiyuan will automatically search its available stockpiles. If there are not enough Chiang Kai-shek rifles available, it will instead send Hanyang 88 rifles to the division. You can also view the resulting frontline demand for goods in the city inventory interface.

Supply routes are not completely secure. Enemy zones of control can sever transportation lines, while units operating too far away may find themselves beyond supply range and become isolated. A successful breakthrough or encirclement can therefore do more than simply destroy enemy forces—it can cut their logistics and gradually render even powerful formations ineffective through lack of supplies.