London, Apr. 15. 'ALTHOUGH powerful German forees, including mechanized units, are pushing towards Kozani and Siatista, about 50 miles south of the Monastir Pass, and Klisura, the Balkan situation now a whole remains unexpectedly encouraging, according to the latest reports received in London.
The German advance in the Florina area is believed to have been made possible by the British withdrawal at the week-end to new positions, which are described as natural strongholds and do not Jend themselves to mechanized warfare.
Klisura, Kozani and Siatista, on which the Germass are advancing, form a triangle about midway between the Gulf of Salonika and the Albanian frontier. It is pointed out that the Klisura mentioned is not the Kilsura in. Albania.
The Greeks, it is officially announced in Athens, have also carried from the Koritza region, of Lake Ochrida. Tt was con: sidered necessary because the German occupation of Southern Yugoslavia had eft open passes leading to the Greek flanks and. rear.
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