While their were others, Zhukov single handedly was put in charge of the defenses of Moscow and was immediately summoned by Stalin to return to Moscow from Leningrad, in which he too was put in charge off after relieving Veroshilov of his duties.

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The war against Russia will be such that it cannot be conducted in a knightly fashion. This struggle is one of ideologies and racial differences and will have to be conducted with unprecedented, unmerciful and unrelenting harshness. -Adolf Hitler