12. According to our information, a further large-scale operation
against Tito and his Partisans in the Sarajevo area is planned
for mid-July. This is likely to involve not less than six divisions.
Elsewhere sporadic activity by the guerrillas calls for repeated
action by German, Italian and Croat troops and there is evidence
that from no area can troops be spared for operations elsewhere.
A detailed analysis of Axis forces appears at Annex A. A summary
of air operations appears at Annex C.
An analysis of sabotage carried out since the 1st May, 1943,
appears at Annex D.
A statement of brutalities committed by the Axis and their satellites
appears at Annex F.
A German order on method of carrying out mass executions appears
at Annex G.
II.--GREECE.
(See Sketch Map B.)
13. Serious guerrilla activity in Greece is much more recent
than in Yugoslavia and it is only since the beginning of this
year that it has begun to cause the Axis really grave concern.
But by January the guerrillas had succeeded in obtaining control
of most of the mountainous districts of Central and Northern
Greece except for the towns and the lines of communication, and
since that time their power has regularly increased, until now
they constitute a very serious menace to Axis forces in the country.
Political differences unfortunately exist between the various
groups, the most important of which are that of Oervas (Right
Wing) in Western Greece and that known as E.L.A.S., under Left-wing
control, in the rest of the country. Though collaboration between
these parties has in the past not always been all that can be
desired, serious quarrels resulting in civil war which have done
so much harm in Yugoslavia have been avoided. The most recent
reports from our liaison officers in Greece state that for the
present the various bands have agreed to work together satisfactorily
under British guidance. They will accept the orders of C.-in-C.,
Middle East, issued through the numerous British liaison of %ficers
in so far as the planning and timing of operations are concerned.
14. The first important move was the destruction, under British
direction, of the Gorgopotamos Bridge on the Athens-Salonika
railway late in 1942; this took some six weeks to repair. During
January 1943 there were no large-scale activities, but in February
and early March a series of harassing moves were undertaken by
the guerrillas in Thessaly and Pindus, which resulted in fairly
serious Axis casualties; we know that in February a column of
some 250 Italians was routed, only ten of whom escaped, and that
in another action quite a large number of Germans were shot.
These small actions continued throughout April and caused such
difficulties for the Axis that by May troop movements in Central
Greece were only possible when made in considerable force, and
main routes of communication could be kept operative only if
constantly guarded and patrolled. On the 16th April the guerrillas
captured and held for 36 hours the town of Amphiclea (15,000
inhabitants) and destroyed all the railway facilities, including
nine locomotives. In addition, during April and early May four
bauxite mines in the Parnassus region were put out of action
and the production of the chrome mines in Thessaly was reduced
by two-thirds.
15. In Western Greece, in order to counter these activities,
the Italians undertook an operation involving at least one division;
this was unsuccessful. The Germans, finding that the protection
afforded by the Italians to chrome mines in Thessaly and to the
Athens-Salonika road and railway was ineffective, sent troops
to Lamia, Larissa and Katerine and took over most of the policing
of the railway. Sweeps on a large scale into the surrounding
country were made from these centres, but on each occasion the
guerrillas, escaped, thanks to their mobility and good intelligence.
As a result of this ill-success, offensive action was initiated
on a more extensive scale in the last week of May. This included
the wholesale bombing and burning of villages. At the same time
two additional German divisions were despatched to Greece, one
of which was probably sent more with the object of engaging the
guerrillas than with that of resisting a possible Allied invasion;
it was soon engaged in Epirus.