A fortress is an asset to the offender As well as to those who seek refuge in defence. Blue water, open space, hills and thick forests Constitute a fortress. Books declare that a fort should have these four: Height, breadth, strength and difficult access. A fortress, ample in space and easy to defend, Spoils the might of the foe. A good fortress is hard to seize, well-supplied And suited to those within. With all materials stocked inside, A fort should have brave soldiers as well. Hard to capture a fort that withstands Besieging, artillery and treachery. Even if encircled by besieging foes, A fortress enables the besieged to win. A good fort gains fame frustrating its siege At the outset of the battle. A fortress, however grand, amounts to nothing If its defenders are meek.