On 15 June the Bulgarian Army took orders to advance towards Thessaloniki. The Greeks stopped them and by 18 June an order for general counterattack was issued for the next day. The 10th division was attacking toward the heights of Kallinovo north of lake Artzan, the 3rd, 5th, 4th and 2nd divisions attacked toward the area of Kilkis, the 6th and 1st toward Lachanas and the 7th toward Karakoli saddle and Nigrita. The Cavalry brigade operated between the 10th and 3rd divisions.