On the night of 9/10 July, the Western Allies mounted an amphibious invasion of Sicily. Three days later, Hitler summoned Günther von Kluge and Erich von Manstein to his Wolfsschanze headquarters in East Prussia and declared his intention to "temporarily" call off Operation Zitadelle. Von Manstein attempted to dissuade him, arguing that Zitadelle was on the brink of victory: "on no account should we let go of the enemy until the mobile reserves which he had committed were decisively beaten". In an unusual reversal of their roles, Hitler gave von Manstein a few more days to continue the offensive, but on 17 July, he ordered a withdrawal and canceled the operation. He then ordered the entire SS Panzer Corps to be transferred to Italy.
While Hitler often made notoriously poor judgments for all the wrong reasons, did he make the right decision for Germany (for the wrong reason) in this specific isolated case? Was Zitadelle really on the brink of victory as Von Manstein believed?