States of Power Supply Lines

Why Supply Lines Matter More Than Tactics

In States of Power, the side with better logistics almost always wins. A tactically inferior force with reliable supply will grind down a superior force that has outrun its logistics. This is not accidental — it reflects the game’s design philosophy that war is won by systems as much as by soldiers.

Every division without supply begins losing organisation within 48 hours of being cut off. Within a week, it is effectively combat-ineffective. This makes supply line security not a secondary concern but the primary planning consideration for every offensive and defensive operation.

Supply Depots

Supply depots are the nodes of your logistics network. Build them in provinces with high infrastructure to maximise throughput. A depot in a province with level 3 infrastructure handles roughly twice the supply volume of a depot in level 1 infrastructure.

Position your forwardmost depot no more than five to seven provinces ahead of your main line. Pushing supply lines further forward than this risks the depot being captured or the route being cut by rapid enemy movements.

Encirclement Prevention

The most dangerous threat to your supply network is encirclement. When an enemy force cuts across your lines and captures the province hosting your supply depot, every division beyond that point loses supply access simultaneously.

Preventing encirclement requires depth in your defensive positions. Never concentrate all your reserves in the frontmost line. Keep at least one reserve division in a province two steps behind the front. If the front line is breached, the reserve can plug the gap before the encirclement is completed.

Convoys and Naval Supply

For nations with overseas territories or island holdings, naval convoys are essential for maintaining supply across water gaps. Build convoys in port provinces and assign them to convoy routes between connected ports. Without sufficient convoy coverage, overseas troops will quickly become isolated and ineffective.

Protecting your convoys requires naval superiority in the relevant sea zones. Without it, enemy naval patrols will sink your transports and sever overseas supply lines within days.

Logistics Under Naval Blockade

If your coastal ports come under naval blockade, the supply throughput of that port drops significantly. Divisions supplied through a blockaded port will experience partial supply deprivation even if the land route is intact. Maintaining naval superiority or investing in coastal anti-naval defenses mitigates this risk.

Supply Priority System

When supply is constrained, the game allocates it to divisions based on strategic priority. Divisions holding critical defensive lines receive supply before offensive formations in the field. You can manually adjust supply priority through the division assignment panel, ensuring your most strategically important units remain combat-effective even during severe supply shortages.

Reading the Logistics Overlay

Press L to activate the logistics overlay. Blue lines indicate healthy supply routes. Yellow lines indicate routes under pressure or partially disrupted. Red lines indicate broken supply chains that require immediate attention. Make it a habit to check the logistics overlay before launching any attack and at regular intervals during active combat. Experienced players keep the logistics overlay visible on a second monitor during large campaigns to catch supply disruptions before they become critical.