The leading German formations reported that they were only about 100 kilometers from Moscow, Russia. On the same day, Moscow-based Soviet fighters discovered German vehicles as close as 50 kilometers from Moscow; when Moscow Military District's Air Force Fighter Command chief Nikolai Sbytov reported this to his supeiors, he was investigated by the NKVD for disseminating false rumors, but he was lucky that Joseph Stalin believed him. For precaution, Stalin ordered the Soviet Western Front to withdraw to Vyazma to form a new defensive line under a new commanding officer, Georgy Zhukov, replacing Ivan Konev
