Build me a Wall

I fence, so walls are an integral part of my defences.

A stoic philosopher once claimed that walls can be broken in many ways. Not if you build them with the right materials- some walls are built to survive breach forever.

My epee wall, however, does not resist such epic sieges. Nor, rather alarmingly, do any of the petty palisades I construct in foil.

Witness wall building, and watch how easily they fall apart. I should imagine that this would be of interest to any foilists. Anyone with fencing expertise is welcome to comment...