NameTargetDescription
BesiegeTown
Castle
Capture a settlement by surrounding it and starving out the defenders; cheaper than a conquest, but takes longer.
ConquerProvince
Town
Castle
Attempt to take immediate control of the territory by engaging and defeating defending forces.
DefendProvince
Town
Castle
Engage any hostile army entering territory gained this year.  An army with Capture as its strategy will automatically defend any gains made.
DevastateProvinceA 'scorched earth' policy, reducing agricultural production.  Usually used as a defensive strategy, often a last resort, to deny an enemy supplies.
EngageArmyBring an enemy army to battle.
GarrisonTown
Castle
Temporarily strengthen the specified garrison, and defend against any attacking forces.
Guard-A passive defence of your own territory against attacking forces.  Less aggressive than the Intercept strategy; after all, they may just be passing through.
Intercept-Attack any army entering your territory, whether or not they appear aggressive.
PillageProvince
Town
Raid the target, providing loot, but no lasting control.
PursueArmyFollow and attempt to engage an army you have sighted.
ReliefTown
Castle
Relieve a settlement being besieged.