Abstract: The subject of this study is the discussion on March 14, 1918 in the House of Commons of Great Britain of the Japanese intervention in the Far East and Siberia as the events of the British intervention in Russia. In this regard, the speeches of deputies from various political forces and a high-ranking official of the Military Cabinet of the United Kingdom in the lower house of parliament are disclosed and analyzed. Thanks to the content analysis method and the system method, not only the positions and arguments of the participants in the discussion are presented in detail, but also the connection of their speeches with the military-political and international situation that developed in March 1918 and which influenced the dynamics of the discussion is revealed. The scientific novelty is that for the first time in the historiography of the Civil War and foreign intervention in Russia, a meeting of the lower house of Great Britain on the Japanese intervention in the Far East and Siberia is considered in the context of the history of British intervention policy in Russia and the significance of this event for this policy. The main conclusions of the study are that, despite the lack of a unified position in the House of Commons on the issue of Japanese intervention in the Far East and Siberia, the War Cabinet has caught the trend in favor of Japanese intervention in these Russian regions. As a result, he cautiously began to build a policy of intervention against Russia and to determine the place of Japanese intervention in it. Only large-scale events could force the House of Commons to adopt the policy that the Cabinet considered necessary to pursue in the current circumstances.

Abstract: The object of this research is the changes in the policy of rendering British aid to the White Forces of Siberia and Southern Russia in July 1919 and their causes. The subject of this research is the information on these matters, contained in the meeting protocol of the British War Cabinet of July 25, 1919 and related decision. Within the framework of the question “Situation in Russia”, were comprehensively discussed the reasonableness and possibilities of rendering British aid to A. V. Kolchak’s army in Siberia and A. I. Denikin’s army in Southern Russia. The author applies narrative method of research for description of documents that have not been previously introduced into the scientific discourse by the Russian scholars. The comparative method is used for correlation of data collected from various sources. The scientific novelty consists in the comprehensive examination of the claimed topic based on the meeting protocol of the War Cabinet of July 25, 1919, as well as other newly introduced documents from the United Kingdom National Archive. The author comes to the conclusion that the escalation of social tension in British society, major defeats of A. V. Kolchak, successful offensive operations of A. I. Denikin, along with the lack of financial resources for supporting the White Forces on all fronts, led to curtailing of British aid to Kolchak’s army and increased support of Denikin’s army, since his military achievements at the moment theoretically allowed counting upon invasion of Moscow.