Complex sentence: On 10 July the full effort of the II SS-Panzer Corps was shifted back to its own forward progress, away from Oboyan due north, to the northeast toward the town of Prokhorovka.
Split into simpler sentences: On 10 July the full effort of the corps was shifted back to its own forward progress. The direction of their advance now shifted from Oboyan due north to the northeast toward the town of Prokhorovka.