a) Battle of Khalkhin Gol
b) Battle of Ulaanbaatar
c) Battle of Oroi-Jalatu
d) Battle of Jao Modo
Answer: c) Battle of Oroi-Jalatu
a) Battle of Khalkhin Gol
b) Battle of Ulaanbaatar
c) Battle of Oroi-Jalatu
d) Battle of Jao Modo
Answer: c) Battle of Oroi-Jalatu