Dee ihe na-aga n'ihu na paragraf a - N'April 1942, Kozin ghọrọ onye isi nke 8th Motor Rifle Division NKVD na mpaghara Voronezh. N'ọnwa Juun, a gbanwere ngalaba ahụ ka ọ bụrụ ngalaba ndị agha nke 63. Ngalaba a lụrụ ọgụ n'agha nke Voronezh
n'oge ọkọchị. Na ngwụcha ọnwa Nọvemba, ngalaba ahụ lụrụ ọgụ na Operation Uranus. Ndị agha nke 63 bụ akụkụ nke isi ọgụ nke 21st Army ma mebie nchebe ndị Romanian-German, na-aga n'ihu na ndịda. Na mpaghara obodo Raspopinskaya, nkewa ahụ nyere aka gbaa ndị agha abụọ nke ndị agha nke atọ nke Romania gburugburu n'etiti 21 na 22 Nọvemba. A kọrọ na mwakpo nke ndị nke 63 kewara akpa ahụ na ọkara ma mezie mwakpo igwe eji battalion ụgbọ njem nke ngalaba ahụ. N'anyasị nke 23 Nọvemba, onye isi ndị Rom nke 14th Infantry Division General Stanescu nyefere ndị agha 27,000 nọ n'akpa ahụ. Maka omume ya, e nyere Kozin iwu nke Suvorov nke klas nke abụọ na nkewa ghọrọ 52nd Guards Rifle Division na November 27. Ngalaba ahụ lụrụ ọgụ na mwakpo ndị Soviet iji belata akpa Stalingrad. Na 21 Jenụwarị 1943, e buliri Kozin n'ọkwa onye isi ndị agha. E merụrụ ya ahụ́ ma kpọga ya ụlọ ọgwụ. Mgbe ọ gbakere, e zigara Kozin ka ọ gaa gụọ akwụkwọ n'ụlọ akwụkwọ ndị agha nke General Staff.