In view of a regrettable loss which has occurred, it is necessary
to call attention to often-repeated orders concerning security.
All commanders, adjutants, liaison officers, doctors, and orderlies
will be impressed immediately and most strongly with the following
points:
Written orders and marked maps must contain only information
which is essential for other ranks to know. All supplementary
information about the general plan of operations will be
given verbally.
Important orders and situation maps must never be taken into
the front line.
Matches, hand grenades, or other means of producing fire must
always be kept at hand for the immediate destruction of orders in
cases when delay involves danger. The division will carry out
periodic inspections in order to supervise the execution of this
order.
Great care must be exercised during telephone conversations
since the English appear to tap connections.
Radio messages may be sent in the clear only when delay would
entail grave danger.