A unit may have one of four combat attitudes to another unit:
Every character, and player faction entity, keeps three lists of units
or other factions which have attitudes declared towards them. A unit is
either on the
neutral list. If
a unit does not appear on any of the three lists, it has attitude
player 778 816 hostile 816 units 4205 6499 4600 6530, concealing lord 6599
Player 778 has declared player 816 hostile. One of 816's characters is concealing its lord.
If 4205 or 4600 run into unit 6499, they will attack it on sight. However, since 6530 is hiding its affiliation with 816, it will not be attacked on sight.
If 6499 is attacked and both 6530 and 6599 are present, 6599 will aid in the defense, but 6530 will not, because that might give away its affiliation.
If player 816 wanted 6530 to defend the faction's units anyway, either
816 or 6530 should issue the order `
'. This would
override the default attitude of units in the faction to one another.
Attitude toward units is considered before attitude toward the unit's faction. Thus, one may declare a faction hostile, but exclude certain units within the faction by specifically declaring them neutral.
A unit must be the top-most character in its stack to aid in defense.
If a unit joins a combat because of
defend, it will bring its
entire stack along, even if the other members of the stack have not
Defenders only help when units are attacked, not when they initiate
attacks. For example, if A has declared `
and B attacks C, A will not help B, even if
B loses the battle.
defend to units which are guarding a province
against pillaging will aid the guards if they are attacked, either
attack, or implicitly via `
Units which joined a combat because of a
defend declaration are
shown with the qualification `
ally' in the combat report.