Operation Citadel - The Battle of Kursk - the greatest tank battle ever fought in terms of numbers, ferocity and importance. July 1943 was the last chance for the Germans to knock the Russians out of the war and rather than rely on surprise or sleight of hand, they went for the most obvious place of all - the Kursk salient.
Tipped off by Ultra, the US/British decoding of German ciphers, the Soviets amassed huge amounts of men, materials, tanks, artillery, mines, AT guns, building a layered defense in depth. Add to this the Soviet Air Force, which was on a par with the Luftwaffe by then and you have an all or nothing battle for both sides. Even if the Germans had managed to win, it would have been pyrrhic, the German losses would have been too much to do much more than delay the war.
Robin Cross wrote this book in 1993, so he did not have the advantage of access to Soviet material. That is one downside to this book, (hence four stars) however, it is a fair book and gives credit to the Soviets where due. Cross examines the roles of each Dictator prior to and during the battle, the Generals of both sides as well as analysis of the weapons of both sides. The failure of the Germans to destroy the Red Army at Kursk meant that the Germans would be forced to retreat, never again to launch a major offensive on the Eastern Front. Local counter attacks were to prevent major breakthroughs and catastrophes.
This is an excellent book for armor students, serious history buffs. It's a very good high level review of what happened, the reasons, the action and the consequences.