Who was Clausewitz? How was he misunderstood by Hitler?

Clausewitz was the military historian and author of the 1812 essay titled "Principles of War". Unfortunately, Hitler, like many others, misunderstood the axiom. Hitler taunted his generals' ignorance of the Clausewitz work, paraphrasing that an army should first destroy his enemies in the field and then occupy their capital. The mistake was that Clausewitz focused on the battlefield and saw the taking of the capital as merely secondary. Hitler did not.