"Jim Wilkins" <
[email protected]> wrote:
Secrets discovered by cryptanalysis needed a credible cover story that
they had been discovered by other means to keep the enemy from
changing the code, for example a search plane "happened" to notice and
be noticed by a located U-boot before it was attacked.
ULTRA intelligence provided target information for the
British aircraft at Malta attacking Axis shipping to
North Africa. However, to protect the source, the air
command would precede each strike with three search
missions - one to the known location of the target
ships, and two to other plausible locations.
(At least one search mission was needed anyway, to ensure
that the target actually was there.)
The extra two missions were to conceal the source from
Allied personnel. If every strike mission found a target
with no preliminary search - then everyone in the units
would figure out that the Allies had advance knowledge.
Some would fall into enemy hands, be interrogated, and
perhaps say foolish things about matters that they hadn't
been briefed and warned on. Others might be transferred
to other areas where Axis intelligence was operating, and
"spill the beans" in conversation with civilians.
One of the great achievements of the war was the work
of the Special Liaison Units established by Wing
Commander Winterbotham to deliver ULTRA intelligence
to operational commanders in the field. Each SLU had
to make sure that the commander they supplied
maintained security and carried out cover activities
as required. Since the commanders far outranked the
SLU men, this required very delicate managing, but it
was done successfully.
--
Nous sommes dans une pot de chambre, et nous y serons emmerd�s.
--- General Auguste-Alexandre Ducrot at Sedan, 1870.
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)