combat area, Army Group Centre had launched Operation Büffel, a series of retreats eliminating the Rzhev salient. On 21 March, IV. Gruppe was ordered to Bryansk where it was deployed over the left wing of Army Group Centre. On 23 March, Resch claimed his first aerial victory as Gruppenkommandeur when he shot down a LaGG-3 fighter northeast of Zhizdra. On the afternoon of 11 April, IV. Gruppe escorted 16 Junkers Ju 87 dive bombers from III. Gruppe of Sturzkampfgeschwader 1 (StG 1—1st Dive Bomber Wing) on a bombing mission to various targets near Kursk. On this mission, Resch claimed two LaGG-3 fighters shot down north of Kursk. The Gruppe flew missions to the combat area south and southeast of Oryol on 25 April. That day, Resch claimed a MiG-3 fighter shot down. The following day, the Gruppe was ordered to the airfield named Sjablowo, a satellite airfield near Oryol. On 7 May, large Soviet bomber and ground attack aircraft units attacked Luftwaffe airfields in the area of Oryol and Bryansk. Defending against this attack, Resch was credited with destruction of an Il-2 ground attack aircraft. Resch was then credited with shooting down a Yak-1 fighter east of Verkhovye on 11 May. The following day, he claimed a LaGG-3 shot down south Oryol, the only claim by IV. Gruppe that day. On 2 June, IV. Gruppe flew escort missions and combat air patrols to Kursk. Without loss, IV. Gruppe pilots claimed 13 aerial victories, including two LaGG-3 fighters by Resch. Combat on 8 June, led the Gruppe to an area east and southeast of Oryol. On two separate missions, Resch shot down a LaGG-3 fighter in the morning and a La-5 fighter later that evening. Operation Citadel and death On 5 July, German forces launched Operation Citadel in a failed attempt to eliminate the Kursk salient that initiated the Battle of Kursk. In preparation of this operation, IV. Gruppe was ordered to an airfield named Oryol-West and supported Generaloberst Walter Model's 9th Army on the northern pincer. That day, pilots of the Gruppe flew up to five combat missions in the combat area near Maloarkhangelsk. The Gruppe escorted bombers from Kampfgeschwader 4 (KG 4—4th Bomber Wing), KG 51 and KG 53 as well as Ju 87 dive bombers from StG 1. The Gruppe claimed 36 aerial victories that day, including two La-5 fighters by Resch, one northeast of Maloarkhangelsk and another