Complete the following sentence: It was in Mongolia that he met his wife Julia Barminan, a high school teacher who was fluent in four languages and who had studied Greek mythology, whom he married in 1923. ️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk> <unk> <unk> <unk> <unk> <unk>
1930 Russo-Chinese Eastern Railroad War of 1929<unk>1930 when the Soviet Union intervened to return the Chinese Eastern Railway to joint Chinese and Soviet administration, after Chinese warlord Zhang Xueliang of the Republic of China attempted to seize complete control of the railway.