Infantry, cavalry, R.A., and R.E. cannot move without supply—if supplies are not provided within six consecutive moves, they are out of action.
A force surrounded must surrender four moves after eating its last horse.
Now as to Destructions:
To destroy a railway bridge R.E. take two moves; to repair, R.E. take ten moves.
To destroy a railway culvert R.E. take one move; to repair R.E. take five moves. To destroy a river road bridge R.E. take one move; to repair, R.E. take five moves.
A supply depot can be destroyed by one man in two moves, no matter how large (by fire).
Four men can destroy the contents of six waggons in one move.
A contact mine can be placed on a road or in any place by two men in six moves; it will be exploded by the first pieces passing over it, and will destroy everything within six inches radius.*
Next as to Constructions:
Entrenchments can be made by infantry in four moves.* They are to be strips of wood two inches high tacked to the country, or wooden bricks two inches high. Two men may make an inch of entrenchment.