All models and units have a Unit Strength (abbreviated as "US") value to establish the relative power of all these different creatures. This is used to determine the overall size and power of each model for purposes like ranks, charging, flanking and so on, which will be described later.

In most cases this is worked out by simply counting the number of models in a unit. However, some large creatures have a different Unit Strength. For information on each model's Unit Strength, see the Troop Types chapter.

To work out the Unit Strength of a unit, count the number of models in the unit and multiply it by the appropriate number given. In the case of several models with different Unit Strengths in the same unit, simply add these together.