Axis turn of May 21st, 1943
The only named corps in the German army, the GrossDeutschland PanzerGrenadier Corps was destroyed over the course of many days of battle West of Kursk. Despite been allowed to retreat by OKH, out of pride, the corps refused to do so until it was too late and pursuing soviet tank corps managed to finish the job.
With this yet another important loss for the Germans, only nine mechanized or panzer corps are left in the German army, all on the Western front. Six such corps have been lost since the war started, all in 1942 or 1943. Both economic and manpower limitation means they will be hard to replace in the short term, if ever.
In a desperate attempt to slow down the Soviet steamroller, especially since STAVKA seems to have shifted resources to the Kursk area trying to exploit initial successes, two Soviet mobile units, including the Soviet 16th Mechanized Corps, were pushed back in a way to clog the retreat path of the 2nd Mechanized Corps which in turn was dispersed and is now considered destroyed for all practical purposes. During the operation, the I Fliegerkorps was destroyed after having been sent to support the offensive while already dangerously short of planes. After receiving instructions to support the offensive with the unit, OKL informed OKW that the unit was in no shape to fight, but the message was lost in the Berlin bureaucracy before the order could be cancelled.