On 5 July 1943 II./KG 55 carried out attacks against Soviet positions with Butterfly Bombs. A they bombed Gremuchiy and Gostishchevo, which the 51st Guards Rifle Division held from the 3rd SS Panzer Division Totenkopf, 12 Yak-1 fighters from the 27 IAP and 10 Lavochkin La-7s from 41 GAP attacked and shot down two Heinkels, and damaged a third. The SS unit managed to take the first objective. From 5, 8 and 9 July it bombed targets around Belgorod. II./KG 55 flew two missions on the 9 July and lost at least one bomber and one damaged in combat with Soviet fighters and after being engaged by strong anti-aircraft fire. Its own bases were targeted on 18 and 20 July. The group bombed Marinovka on 24 July, before relocating to Dnepropetrovsk on 6 August 1943. Beevka (7 August), Surkaya-Kamensk (17 August), and targets in and around Kalinovka (20 August) were carried out as the Red Army embarked on the Belgorod-Khar'kov Offensive Operation.