BASTION BASTIONS TOWER TOWERS FORTRESS FORTRESSES CASTLE CASTLES

BASTION
 
A bastion is any static defense built by a cabal's army to defend
and secure an area.  When in an area that has reinforcement (see
HELP REINFORCE) an army can be ordered to build a bastion through
garrison order.  Once built, the bastion can be garrisoned with
troops increasing their armor value to that of the bastion.
 
TAKING OVER AN AREA:
Each area has a maximum number of bastions it can support.  If a
cabal builds more than half that maximum's bastions they conquer it.
An area that has no bastions will eventually rebel against the cabal
that holds it, and turn neutral.  You can find out how many bastions 
your cabal has in an area and its maximum using "[M]ap" army command.

See also: ARMY, REINFORCE, ARMY GARRISON