A watan Agustan 1492, ba tare da ayyana yaki ba, Ivan III ya fara manyan ayyukan soja: ya kama ya ƙone Mtsensk, Lyubutsk, Serpeysk, da Meshchovsk;sun kai hari Mosalsk;kuma ya kai hari kan yankin Dukes na Vyazma.Mahukuntan Orthodox sun fara sauya sheka zuwa birnin Moscow yayin da suka yi alkawarin samar da kariya daga hare-haren soji da kuma kawo karshen wariyar addini daga Lithuanian Katolika.Ivan III a hukumance ya ayyana yaki a 1493, amma ba da daɗewa ba rikici ya ƙare.Grand Duke na Lithuania Alexander Jagiellon ya aika da tawaga zuwa Moscow don yin shawarwari kan yarjejeniyar zaman lafiya.An kulla yarjejeniyar zaman lafiya ta "madawwami" a ranar 5 ga Fabrairu, 1494. Yarjejeniyar ta nuna hasarar yankunan Lithuania na farko ga Moscow: Mulkin Vyazma da yanki mai girma a saman kogin Oka.