7.1.8.2 Protection In a Fortress

If one side owns a fortress on the battlefield then they suffer fewer losses. The extra protection depends on the size of the fortress:

Fortress	Losses
Small fortress:	Defender suffers only 80% of the normal losses
Medium fortress:	Defender suffers only 65% of the normal losses
Large fortress:	Defender suffers only 45% of the normal losses

Notes:

If the owner of the fortress loses the battle there is a 90% chance of the fortress being degraded by 1 level.

If the owner wins there is only a 25% chance of the fortress being degraded by 1 level.