The following special rules apply to an allied contingent:
Units belonging to an allied contingent can only be joined by characters that belong to the same allied contingent.
Characters belonging to an allied contingent can only join units that belong to the same allied contingent.
Units belonging to an allied contingent cannot use the Inspiring Presence rule of the main army's General nor the Hold your Ground rule of a Battle Standard belonging to the main army.
Units belonging to the main army cannot use the Inspiring Presence rule of an allied contingent's General nor the Hold your Ground rule of a Battle Standard belonging to an allied contingent.
Army special rules that affect units belonging to the main army do not affect units belonging to an allied contingent.
Army special rules that affect units belonging to an allied contingent do not affect units belonging to the main army.
For all other purposes (Panic tests, spell effects, combat results, etc.), units and characters belonging to an allied contingent are considered to be part of the main army.