 Pari gbolohun yii: Mongolia ja ogun pẹlu Japan nigba : Ogun ti Khalkhin Gol ni 1939 ati Ogun Soviet-Japanese ni Oṣu Kẹjọ ọdun 1945 lati daabobo ominira rẹ ati lati gba Southern Mongolia lọwọ Japan ati China. Látọdún 1920 ni ilẹ Mongolia ti wà lábẹ àkóso ìjọba Soviet Union. 