Troops are on a separate tracking page, which tracks time a well. Some leaders have a combat bonus this is an adder to the die roll. Knight vs knight, knight vs knave, knave vs knave, and knave vs knight. You choose a battle startegy before A, B, or C. A is all or nothing, C is attrition, B is in between. Knaves have to atack knaves first, they can only attack knights if there are no knaves.
Losses are for the defende only.
As you might imagine, knaves attacks knights is hopeless, knights against knaves is bloody. After field combat, you can attack the caslte in the hex, if there is one. There are two rounds of field combat, you can retreat after the second, and can not be pursed, and can take your siege train. If you retreat after one rounds, or before combat, you lose your siege train, and suffer pursuit if the other side has knights. After two rounds, the one who took the most casualties has to retreat.