Faatumu le fuaiupu lenei: I le 1362, na vaevaeina ai le Golden Horde i Keldi Beg i Sarai, Bulat Temir i Volga Bulgaria, ma Abdullah i Crimea. I le taimi lava lea, na osofaʻia ai e le Grand Duchy o Lithuania ia vaitafe i sisifo o le Golden Horde ma faatoʻilaloina Kiev ma Podolia ina ua maeʻa le Taua o le Blue Waters i le 1363. Na lagolagoina e se taʻitaʻiʻau malosi o Mongol e igoa iā Mamai ia Abdullah, ae na lē mafai ona ia faoa Sarai, lea na toe tulaʻi mai ai isi tupu e toʻalua, o Murad ma Aziz. Na maliu Abdullah i le 1370 ma na faapaleina Muhammad Bolaq e avea ma tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tamaʻi tama. Sa feagai foʻi Mamai ma se fouvalega i Nizhny Novgorod. Na osofaʻia e fitafita mai Moscow le teritori o le malo o Bulgaria o Arab-Shah, le atalii o Bulat Temir, o lē na faafuaseʻi ona puʻeina i latou ma faatoʻilaloina i latou i auvai o le vaitafe o Pyana. Peitaʻi, e leʻi mafai e Arab-Shah ona faaaogā lelei le tulaga na iai, ona o le osofaʻiga a se isi taʻitaʻiʻau o Mongol mai i sasaʻe. O le faalaeiauina o ia i le tala o le faatoʻilaloina o le malo o Moscow, na auina atu ai e Mamai se ʻautau e faasagatau atu iā Dmitri Donskoy, o lē na faatoʻilaloina le ʻautau a Mongoli i le taua i le
Taua i le Vaitafe o Vozha i le 1378. Na faafaigaluegaina e Mamai fitafita tau totogi mai i Genoa, Circassian, ma Alan mo se isi osofaʻiga i Moscow i le 1380. I le taua na sosoo ai, na toe faatoʻilaloina ai foʻi ʻautau a Mongol i le Taua i Kulikovo.