To aid the Bulgarians in the siege of Adrianople, it sent the II.
In view of the urgency of occupying Salonika before the Bulgarians arrived, the Crown Prince decided to leave only flank guards (5th Div.
Nevertheless, the actual plan of campaign of the Bulgarians still remains obscure - all that is known being the fact that the first successes caused it to be abandoned.
The Bulgarians, on their side, allocated a whole army to the task of dealing with it, by investment, brusque assault or regular siege, or a combination of those methods.
Columns (a) and (b), forming the strongest part of the army, and also column (c) soon met with strong resistance (morning 22nd), and the country, the weather (stormy since the 20th) and tactical incidents making progress uneven, the front at nightfall of the 22nd was very sinuous, the Turks holding pronounced salients at Eski Polos, and .also at Almajik, while the Bulgarians had penetrated nearly to Kadikoi in the centre and within 2 m.