All these things were, in their varying degrees, elements of policy upon which the Allied strategy must base itself if its war aims were to be obtained, and accordingly the military treaty between Bulgaria and Serbia provided for a Serbo-Bulgarian army of 7 Serbian and 3 Bulgarian divisions to invade Macedonia, moving concentrically against the front Uskub - Kumanovo - Kratovo - Kochana, forming the outer contour of the plain known as Ovche Polye which was assumed on both sides to be the natural concentration area of the Turks.
The striking wing of the allied army - that which, directed upon Shtip, would have come in upon the rear of the Turkish positions on the Ovche Polye - was thereby deprived of a force of about 80,000 men.
The Ovche Polye was, after all, not to play the part of Koniggratz.
Of the remaining 9, i was at Prishtina, 2 in the valleys of the Bregalnitsa and the Zletovska facing Kochana and Kratovo, and 6, forming the main group under Zekki, advanced across the Ovche Polye on the 21st and 22nd, the V.
Turkish Corps, fearing to be enveloped, retreated southward into the Ovche Polye.
Armies across the Ovche Polye was complete.
Already Serbia had drawn her western forces into the Ovche Polye area, to dispute possession of the debatable region which Bulgaria claimed, and the II.
The Bulgarian scheme of operations, necessarily offensive, suffered from the weakness of having two objectives - the Ovche Polye and Salonika - and being based on two main lines of communication diverging towards the rear - Kyustendil and Seres - Drama.