After the 1917 Bolshevik October Revolution , he became an active opponent of Lenin 's government .
After the 1917 Bolshevik October Revolution , he joined the anti-Soviet Union of Revival of Russia , which advocated an armed overthrow of the Bolshevik regime .
After the 1917 Bolshevik October Revolution , he became an active opponent of Lenin 's government and joined the anti-Soviet Union of Revival of Russia , which advocated an armed overthrow of the Bolshevik regime .