On 22 June 1941, Kuznetsov's 3rd Army was stationed in Belarus, as part of the Western Front. It was overwhelmed and surrounded by German forces. In July, he and the remains of his formation broke out and returned to the Soviet lines. This feat earned him praise from Stalin when he issued Order No. 270. In late August, he was sent to command the Southwestern Front's 21st Army, but his force suffered crushing defeat once more in the Battle of Kiev. On October, he was appointed to command the Kharkov Military District, but reassigned to head the 1st Shock Army on 23 November, with which he took part in the Battle of Moscow. His units liberated Klin and Solnechnogorsk.