In which capacity did this person, who established the Bogd Khan puppet government, serve in the Russian Civil War?
Roman von Ungern-Sternberg Baron Roman Nicolaus Maximilian von Ungern-Sternberg (Russian: Барон Ро́берт-Ни́колай-Максими́лиан Рома́н Фёдорович фон У́нгерн-Ште́рнберг ) (10 January 1886 NS – 15 September 1921) was an anti-Bolshevik lieutenant general in the Russian Civil War and then an independent warlord whose Asiatic Cavalry Division wrested control of Mongolia from the Republic of China in 1921 after its occupation. He was often referred to as Baron Ungern, or simply Ungern.
Nicholas II of Russia Nicholas II or Nikolai II (Russian: Николай II Алекса́ндрович , "Nikolay II Aleksandrovich" ; 18 May [O.S. 6 May] 1868 – 17 July 1918) was the last Emperor of Russia, ruling from 1 November 1894 until his forced abdication on 15 March 1917. His reign saw the fall of the Russian Empire from being one of the foremost great powers of the world to economic and military collapse. Due to the Khodynka Tragedy, anti-Semitic pogroms, Bloody Sunday, the violent suppression of the 1905 Revolution, the execution of political opponents and his perceived responsibility for the Russo-Japanese War, he was given the nickname Nicholas the Bloody by his political adversaries. Soviet historiography portrayed Nicholas as a weak and incompetent leader, whose decisions led to military defeats and the deaths of millions of his subjects.