Калининский фронт
By 19 September, Soviet troops had created a 250 kilometers (150 mi) long and 40 kilometers (25 mi) wide gap in Wehrmacht lines. The following day, Stavka ordered the Western Front troops to reach Smolensk before 27 September, then to proceed towards Orsha and Mogilev. The Kalinin Front was ordered to capture Vitebsk before 10 October.