 Complete the following phrase:  He was born in Mongolia in the Barzan area on the territory of the Aldarkhaan, in what was then the Bogd Khanate. The early 30s, he worked as a firefighter and collective farmer. From 1935-1936, he studied at the cavalry school under the 1st Cavalry Division and in 1937, he joined the Mongolian Peoples Revolutionary Party. During World War Two, he participated in the 