Barbed Wire
Reviel Netz, 20 July 2000
“... must be broad enough not to be easily bridged or quickly cut through, must be under the close fire of the defence, and near enough to be effectively watched by night. The near edge of the entanglement should be about 20 yards from the trench, and it should be at least 10 yards broad ... It may sometimes be useful to construct a second belt of wire ... ”