7.1.8.1 Conditions for a Fortress-Battle

A full mathematical battle where one side is defending a fortress will only occur if the attacker has enough artillery or pioneers in his army to assault the fortress.

If the attacker does not have enough heavy artillery in his army then they can substitute one battalion of heavy artillery with either 2 battalions light artillery or with 4 battalions of pioneers. Battalions can be deployed in combination, you only have to reach the required number of heavy artillery battalions or their substitutes.

Example:

To attack a medium fortress you could attack with the following battalions:

2 battalions heavy artillery

2 battalions mounted artillery (counts as 1 heavy battalion)

1 battalions light artillery (counts as 0.5 heavy battalions)

2 battalions pioneers (counts as 0.5 heavy battalions)

Notes:

All artillery and pioneer battalions that are used to attack a fortress must have a minimum headcount of 500 men and an experience factor of at least 5.

If the attacking army does not have the required artillery a limited mathematical battle will occur. In this event the defender will shell the attacker for five rounds with fire from the fortress artillery(see 7.1.8.3., p69), and the attacking army will not inflict any casualties on the defending forces unless they have their own artillery which would return fire. The attacking army will then not be able to capture enemy territory for one turn (see 7.1.9., p69). However, it is possible for the losing army to move/retreat over their own territory or that of an ally.

If the defending army has at least twice the total number of men than the attacking army, then the defenders will leave the fortress and engage the enemy outside the fortress walls. This will happen even if the attacking army does not have enough artillery to storm the fortress.

If the attacking army has sufficient brigades to overrun the fortress defenders then an overrun will take place as the attackers storm the fortress (see 6.4.1.3.2., p49).

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