In July the priority of KG 55 and all bomber units in "Luftflotte" 4 was railway interdiction in the Dnieper area. The dusty and ill-prepared roads were ill-suited to transporting large amounts of equipment and the Red Army relied on rail systems for logistics. The vast distances had an effect on escort fighter operations. The 1 Panzer Army seized Berdichev on 1 July after advancing 43 miles in three days. was required to support it, but the forward airfield of JG 3, now at Lutsk, was out of range. The II "Gruppe" proceeded and lost four bombers to Soviet fighters. I "Gruppe" was also active, bombing rail and supply targets over the Dnieper between Kiev and Cherkassy. The group also attack rail and motor traffic between Zhitomir and Kiev. The Kiev–Korosten line was attacked on 5 July. Berdichev-Skvira (6 July) and Kiev rail station was bombed on 9 July. The group reverted to attacking Red Army columns south of Machnovka on 11 July. It moved from Labunie to Bojary on 20 July. From here, the group was part of the first raid on Moscow on 21/22 July 1941. Another transfer to Zhitomir on 25 July followed and it began operations against Drohobycz, southwest of L'vov on 26 July. It may have bombed Moscow again on the night of the 28 or 29 July.