195.—When defended in rear.
If the defile is defended at the farther end, as in the case of a bridge, echelon units (properly covered) for heavy concentrated fire from the bank held and cross the bridge on the run and in small groups.
NIGHT ATTACKS.
196.—Of limited scope.
They must be confined to simple movements over easy ground.
197.—Orders to be given.
They must be carefully prepared secretly beforehand in every detail. The orders must include detailed particulars on the role of each unit or fraction of units, precise data on the rallying points and on the signals to be used.
198.—Small units used.