The types and quantity of troops that armies can field is restricted by the territory they control. As the army's commander expands his territories he also expands his army, attracts heroes and wizards to his cause, acquires riches, and wins new magic items.
To start off with each player is restricted in his choice as follows:
STRATEGIC FEATURES - Such as bridges, roads and passes - limit access by your armies. To represent this, armies are chosen to 1,500 points and larger armies can only be assembled by taking control of bridges, roads and passes.
WIZARDS - Each army may have one level 1 wizard and cannot include any other wizards unless the player's territory includes wizard's towers, sacred groves, shrines or temples.
OTHER CHARACTERS - Each army must be led by a General chosen from the Warhammer Armies army list. The General can be a wizard if the army list allows this. Otherwise the army may not include heroes, champions, or other non-wizard characters unless the player controls villages or towns.
MAGIC ITEMS - Each army can include one magic item worth up to 50 points. More magic items can be included if the player controls a source of income in the form of trade routes, mines, treasure or mysterious ruins.
WAR MACHINES - Each army can include up to one war machine or chariot and cannot include more unless the player controls forests to provide wood to build machines and fuel furnaces.
LARGE MONSTERS - Each army can include up to 1 large monster and cannot include more unless the player controls mountains where such beasts live. Trolls, Ogres and other monsters which normally fight as regiments don't count for this purpose Giants, Manticores, Dragons, Giant Eagles and such like do.
ALLIES - You cannot choose allies as part of your army. However, you are allowed to ally with other players as described later.