 Nyora kupfuurira kweiyi ndima - Muna May 1943, Oleshev akagadzwa kuva mutungamiriri we31st Armys 36th Rifle Corps. Mauto akabata Smolensk neYartsevo panguva yeHondo yeSmolensk muzhizha ra1943. Muna June 1944, boka racho rakarwa muOperation Bagration, richibata Orsha neDubroŭna. Musi wa 3 Chikunguru, akagadzwa semukuru wemauto muMinsk uye akatarisira kubviswa kwemarara mumigwagwa, kubviswa kwezvombo zvisina kuputika uye kudzoreredza magetsi nemvura mukati memazuva gumi anotevera. Musi wa14 Chikunguru, Oleshev akagadzwa kuve mukuru we39th Armys 113th Rifle Corps. Akatungamirira boka racho panguva yeKaunas Offensive mukupera kwaJuly naAugust. Musi wa 28 Gunyana, akapihwa Order yeSuvorov 2nd kirasi. Muna October, boka racho rakarwa muHondo yeMemel. Munguva yeHondo yeMemel, mauto, achifambira mberi muuto re 39th, akabata Smalininkai musi wa 9 Gumiguru. Mauto acho akabva arwa muOperation Gumbinnen. Kubvira muna January 1945, boka racho rakarwa muEast Prussian Offensive. Boka racho rakabatsira kubata Tilsit uye nokuda kwezviito zvaro rakapiwa zita rokuremekedza rokuti Tilsit. Pana 21 February 1945, Oleshev akapiwa Order of Lenin. Nokuda kwezviito zvayo muHondo yeKönigsberg yakatevera, boka racho rakapiwa chirongwa cheRed Banner. Musi waMay 5, Oleshev akasimudzirwa kuva lieutenant general. 