 Three "Staffelkapitäne" were killed in action with US aircraft in August, and a fourth by RAF Spitfires.On 6 September JG 2 achieved an increasingly rare success; the US Eighth Air Force attacked Stuttgart, losing 45 bombers—Mayer claimed three of them in 19 minutes over France.On 23 September, the wing suffered 12 casualties on a single day in action with the Eighth.