Pedzisa mutsara unotevera: Muna April 1942, Kozin akava mutungamiriri we8th Motor Rifle Division NKVD munharaunda yeVoronezh. Muna June, boka racho rakashandurwa kuva 63rd Rifle Division. Chikamu chacho chakarwa mu
Hondo yeVoronezh mukati mezhizha. Pakupera kwaNovember, divi racho rakarwa muOperation Uranus. Chikwata chechi63 chaive chikamu chekurwisa kukuru kwe21st Army uye chakapwanya dziviriro dzeRomania-German, ichifambira kumaodzanyemba. Munharaunda yeRaspopinskaya musha, chikamu chakabatsira kukomberedza zvizere mauto maviri eRomania Third Army pakati pa21 na22 Mbudzi. Kurwisa kwechi63 kunonzi kwakaparadzanisa homwe nepakati ndokutevedzera kurwisa kwemichina vachishandisa battalion yekufambisa yemotokari yechikamu. Manheru aNovember 23, mutungamiri weRomania 14th Infantry Division General Stanescu akaisa mauto 27,000 muhomwe. Nokuda kwezviito zvake, Kozin akapiwa Order of Suvorov 2nd class uye chikamu chakava 52nd Guards Rifle Division musi wa 27 November. Zvadaro boka racho rakarwa mukurwisa kweSoviet kuti kuderedze Stalingrad Pocket. Pana 21 January 1943, Kozin akasimudzirwa kuva mukuru mukuru. Akakuvadzwa ndokuendeswa kuchipatara. Apora, Kozin akatumirwa kunodzidza paMilitary Academy of the General Staff.