Victor Pepelyaev were shot and their bodies were thrown through the ice of the frozen Angara River, just before the arrival of the White Army in the area. Remnants of Kolchak's army reached Transbaikalia and joined Semyonov's troops, forming the Far Eastern army. With the support of the Japanese army it was able to hold Chita, but after the withdrawal of Japanese soldiers from Transbaikalia, Semenov's position became untenable, and in November 1920 he was driven by the Red Army from Transbaikalia and took refuge in China. The Japanese, who had plans to annex the Amur Krai, finally pulled their troops out as Bolshevik forces gradually asserted control over the Russian Far East. On 25 October 1922 Vladivostok fell to the Red Army, and the Provisional Priamur Government was extinguished. Aftermath Ensuing rebellion In Central Asia, Red Army troops continued to face resistance into 1923, where basmachi (armed bands of Islamic guerrillas) had formed to fight the Bolshevik takeover. The Soviets engaged non-Russian peoples in Central Asia, like Magaza Masanchi, commander of the Dungan Cavalry Regiment, to fight against the Basmachis. The Communist Party did not completely dismantle the group until 1934. General Anatoly Pepelyayev continued armed resistance in the Ayano-Maysky District until June 1923. The regions of Kamchatka and Northern Sakhalin remained under Japanese occupation until their treaty with the Soviet Union in 1925, when their forces were finally withdrawn. Casualties The results of the civil war were momentous. Soviet demographer Boris Urlanis estimated the total number of men killed in action in the Civil War and Polish–Soviet War as 300,000 (125,000 in the Red Army, 175,500 White armies and Poles) and the total number of military personnel dead from disease (on both sides) as 450,000. Boris Sennikov estimated the total losses among the population of Tambov region in 1920 to 1922 resulting from the war, executions, and imprisonment in concentration camps as approximately 240,000. As many as 10 million lives were lost as a result of the Russian Civil War, and the overwhelming majority of these were civilian casualties. During the Red Terror, estimates of Cheka executions range from 12,733 to 1.7 million. William Henry Chamberlin suspected that there were about 50,000. Evan Mawdsley suspected that there were more than 12,733, and less than 200,000. Some sources claimed at least 250,000 summary executions of "enemies of the people" with estimates reaching above a million. More modest estimates put