Kammala jumla mai zuwa: A lokacin Operation Bagration, da janar counteroffensive a Belarus, Vasilevsky hada kai da hare-haren da 1st Baltic da 3rd Belarusian Fronts. Lokacin da sojojin Soviet suka shiga kasashen Baltic, Vasilevsky ya dauki cikakken alhakin dukkan bangarorin Baltic, ya watsar da 3rd Belorussian. A ranar 29 ga Yuli, 1944, an sanya shi Jarumin Tarayyar Soviet saboda nasarorin da ya samu na soja. A watan Fabrairun 1945, an sake nada Vasilevsky a matsayin kwamandan rundunar Belorussian Front ta 3 don jagorantar aikin East Prussian, ya bar mukamin Babban Jami'in Janar zuwa Aleksei Antonov. A matsayin kwamandan gaba, Vasilevsky ya jagoranci aikin Prussian na Gabas kuma ya shirya hare-haren Königsberg da Pillau. Ya kuma tattauna batun mika wuya ga rundunar Königsberg tare da kwamandanta, Otto Lasch. Bayan yakin, Lasch ya yi iƙirarin cewa Vasilevsky bai mutunta garantin da aka bayar ba yayin mika birnin. Tabbas, Vasilevsky yayi alƙawarin cewa ba za a kashe sojojin Jamus ba, cewa za a bi da fursunoni, fararen hula da waɗanda suka ji rauni da kyau, kuma duk fursunoni za su koma Jamus bayan ƙarshen yaƙin. Maimakon haka, Lasch ya kasance a kurkuku har tsawon shekaru 10 kuma ya koma Jamus ne kawai a shekarar 1955, kamar yadda yawancin sojoji da jami'an Wehrmacht suka yi, yayin da duk mutanen Jamus suka kasance
an kore shi daga Gabashin Prussia. Don nasarorin da suka samu a Königsberg da Gabashin Prussia, an ba Vasilevsky lambar yabo ta biyu ta Nasara.