"This is highly defensible."
The area was highly defensible, but lateral communications were poor.
It is a splendid structure, and highly defensible, walled fortifications encircling the peak of the hill.
They were on a flat-topped pinnacle of sheer rock, with no visible access to it from any direction, what path there was would be secret and highly defensible.
Gibraltar's location and highly defensible nature have attracted the covetous gaze of military strategists ever since.
Like any castle, it was highly defensible; twenty men could hold off an army here.
It was highly defensible, with a double moat and city walls built a hundred years earlier.
This highly defensible position was filled with artillery.
Its location, on a spur of land jutting into the Lahn river, was highly defensible.
"The pass at Screaming Winds is highly defensible," Momma K suggested.