Ka cika wannan jumlar: Manyan yankuna na ƙasashen Rus, har da kwarin Kogin Dnieper da yankuna da suka kai kudu zuwa Bahar Maliya, a lokacin suna ƙarƙashin ikon Lithuania. Don samun iko da waɗannan manyan wuraren, Lithuanians da Ruthenians sun yi yaƙi da
Yaƙin Blue Waters a cikin 1362 ko 1363 a kan mamayewar Mongols kuma ya yi amfani da ikon fanko zuwa kudu da gabas wanda ya haifar da lalatawar Mongol na Kievan Rus '. Yawan jama'ar yankin Grand Duchy da aka faɗaɗa ya kasance daidai da Ruthenian da Orthodox na Gabas. Fadada yankin ya haifar da rikici tsakanin Lithuania da Grand Duchy na Moscow, wanda ya sami kansa yana fitowa daga mulkin Tatar kuma kansa yana cikin fadadawa. Musamman a Turai, ƙungiyar ta haɗu da jihohi biyu da ke cikin geographically a bangarorin biyu na babban bambancin wayewa tsakanin yammacin Kirista ko Latin duniya, da kuma gabashin Kirista ko Byzantine duniya.