§At the time of the battle, all
the trees around the fort for over two hundred yards
were felled, to provide clear fields of fire and observation.
tree branches were pointed toward the enemy, forming an obstacle called
abattis, or abbattis (a French word meaning
a heap of material thrown) is a term in field fortification for an obstacle formed of the branches of trees laid in a row, with the tops directed towards the enemy.
“Rubbish in front of a fort, to prevent
the rubbish outside
from molesting the rubbish inside.” --- Ambrose Bierce