With the transfer of German units to the western front in the spring of 1918, the position of the Central Powers on the Macedonian front worsened.
In September, Entente forces undertook an offensive directed primarily at Bulgarian defenses at Dobro Pole..
The Entente Command perceived in Macedonia an excellent opportunity to apply additional pressure to the Germans, who were already retreating on the western front.
Materiel became scarce and morale among the Bulgarian forces deteriorated.
With the transfer of German units to the western front in the spring of 1918, the position of the Central Powers on the Macedonian front worsened