茲布魯奇河
Because the Blue Army was the only well-armed combat unit in the recreated Polish Army, the command decided not to split it into smaller pieces. The whole army was deployed at the Polish-Ukrainian frontline. In the course of victorious battles against the Ukrainian army, Haller's forces reached the Zbruch River, passing Volhynia and Eastern Galicia. However, in June the General himself was dispatched to the Polish-German borderline in order to take command of the army on the South-Western front.