For a time Central Asia was completely cut off from Red Army forces in Siberia. Although the communication failure weakened the Red Army, the Bolsheviks continued their efforts to gain support for the Bolshevik Party in Central Asia by holding a second regional conference in March. During the conference, a regional bureau of Muslim organisations of the Russian Bolshevik Party was formed. The Bolshevik Party continued to try to gain support among the native population by giving it the impression of better representation for the Central Asian population and throughout the end of the year could maintain harmony with the Central Asian people. Communication difficulties with Red Army forces in Siberia and European Russia ceased to be a problem by mid-November 1919. Red Army successes north of Central Asia caused communication with Moscow to be re-established and the Bolsheviks to claim victory over the White Army in Turkestan. In the Ural-Guryev operation of 1919–1920, the Red Turkestan Front defeated the Ural Army. During winter 1920, Ural Cossacks and their families, totaling about 15,000 people, headed south along the eastern coast of the Caspian Sea towards Fort Alexandrovsk. Only a few hundred of them reached Persia in June 1920. The Orenburg Independent Army was formed from Orenburg Cossacks and others troops who rebelled against the Bolsheviks. During the winter 1919–20, the Orenburg Army retreated to Semirechye in what is known as the Starving March, as half of the participants perished. In March 1920 her remnants crossed the border into the Northwestern region of China. South Russia, Ukraine and Kronstadt (1920–21) At the beginning of 1920, Denikin was reduced to defending Novorossia, the Crimean peninsula, and the Northern Caucasus. On 26 January, the Caucasian army retreated beyond the Manych. On 7 February, the Reds occupied Odessa, but then Makhno started fighting the Fourteenth Red Army. On 20 February, Denikin succeeded in recapturing Rostov, his last victory, before giving it up soon after. By the beginning of 1920, the main body of the Armed Forces of South Russia was rapidly retreating towards the Don, to Rostov. Denikin hoped to hold the crossings of the Don, then rest and reform his troops, but the White Army was not able to hold the Don area, and at the end of February 1920 started a retreat across Kuban towards Novorossiysk. Slipshod evacuation of Novorossiysk proved to be a dark event for the White Army. Russian and