 In the meantime, an Anglo-Hellenic force would strike Mount Belasica, occupying the Rupel Pass.D'Espèrey expected to march the Allied Army of the Orient through the towns of Demir Hisar, Rupel, Petrici, Blagusa, Gradec, Štip and Belessa finally seizing Skopje.Units stationed at Katsania and Tetovo would prevent a Bulgarian flanking maneuver, while the main body of the force would widen the breach both in Štip and Prilep.