By what?

Wooden components:

wooden cube with 3 chamfered edges: it represents one unit (500 men) – Manpower for the game is 20 units.

Basic unit (Light Infantry) can be upgraded to another type of unit.
There are 5 levels of experience. Experience comes from combat or training.
Experience affects reroll, bonuses, lives and position in combat.
This block represents different herds of livestock or special units.
Special Forces do not count towards manpower. Herds are a source of meat.
Tile represents buildings. Settlement or Shipyards.

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more to come