10 "Staffel" bombed Hull on 26 April 1942. It took part in bombing raids against Birmingham on 27–31 July 1942. It had 26 bombers, including six and three of the P-2s and P-4 variants by 1 March 1943. 13 "Staffel" was formed at Gerdauen in East Prussia on 1 March 1944 after three years of training activities near Dijon. The "Gruppe" moved to Heuhausen to avoid attacks by Allied aircraft on 4/5 May 1944. It moved to Szolnok, Hungary to avoid advancing Soviet forces on 1 August. On 20 August the Fifteenth US Air Force bombed the base killing six and wounded 18 personnel. It had 34 bombers on 1 September which it evacuated to Pilsen, Czechoslovakia on 1 and 2 September. The "Gruppe" lost its identity on 21 November 1944 with 12 and 13 "Staffeln" and renamed 4. and 3. respectively of Erg.Gr. (J), and 10 and 11 "Staffeln" disbanded, under the command of IX "Fliegerkorps". IV. "Gruppe" would lose 50 aircraft in the west before the end of the war.