No. 79, No. 607, No. 615 and No. 151 Squadron were involved. Over Merville, Nord and Lille one 4 and one 6./ZG 76 crew were killed. Geschwaderkommodore Walter Grabmann, who flew with Stab./ZG 76 that evening was shot down and became a prisoner of war. His gunner, Feldwebel Richard Krone was killed in action. According to records, one Hurricane from B Flight, No. 111 Squadron, that arrived on the scene was shot down by a ZG 76 Bf 110. a No. 56 Squadron Hurricane pilot from B Flight, Flight Lieutenant S Soden was killed in action with II./ZG 76. On 21 May, ZG 76 was in combat supporting German forces in the Battle of Arras. In combat with No. 229 and No. 253 Squadrons intercepting bombers from III./KG 1, the ZG 76 Bf 110s managed to down two Hurricanes; one pilot was killed while Squadron Leader Elliot was captured. One of the 9./KG 1 bombers was shot down. On 23 May, according to Fighter Command records, four fighters were lost in action with Bf 110 units killing one pilot, wounding another while two were wounded. II./ZG 76 fought over the Dunkirk beaches during the Battle of Dunkirk. On 26 May the gruppe made a single claim against an unknown aircraft type and squadron. According to RAF Fighter Command records, two Hurricane pilots were shot down by Bf 110s this day—the pilot from No. 17 Squadron was killed and the other from No. 605 Squadron returned to his unit. Neither ZG 1, ZG 2 or ZG 26 filed any claims on 26 May. Dunkirk was a severe test for Fighter Command which had been designed as a defensive force. Fighter leaders were often forced to operate outside of British-based radar range, and thus RAF controllers in England were unable to assist in coordinating the squadrons. The Germans could dictate the terms of the battle; the when, where and height of the engagement, often in superior numbers. On 27 May four fighters were reported lost in combat with Bf 110s (two credited to Bf 110s and Junkers Ju 88 bombers) by Fighter Command. The command staffel and II./ZG 76 continued operations with Fliegerkorps I for the duration of Fall Rot. Fliegerkorps I operated in the Brittany and Normandy sectors in a bid to stop further evacuations. The air corps failed, and Operation Aerial succeeded. Hans-Joachim Jabs surmised his experience with ZG 76