defeated the Austro-Hungarian army at the Ukrainian village of Zboriv, in July 1917. After this success, the number of Czechoslovak legionaries increased, as well as Czechoslovak military power. In the Battle of Bakhmach, the Legion defeated the Germans and forced them to make a truce. In Russia, they were heavily involved in the Russian Civil War, siding with the Whites against the Bolsheviks, at times controlling most of the Trans-Siberian Railway and conquering all the major cities of Siberia. The presence of the Czechoslovak Legion near Yekaterinburg appears to have been one of the motivations for the Bolshevik execution of the Tsar and his family in July 1918. Legionaries arrived less than a week afterwards and captured the city. Because Russia's European ports were not safe, the corps was evacuated by a long detour via the port of Vladivostok. The last transport was the American ship Heffron in September 1920. The Transylvanian and Bukovinian Romanians who were taken prisoners of war fought as the Romanian Volunteer Corps in Russia, Romanian Legion of Siberia and Romanian Legion in Italy. Taking part in the Eastern Front as part of the Russian Army and since summer 1917 in the Romanian front as part of the Romanian Army. As a supporter of the White movement with the Czechoslovak Legion against the Red Army during the Russian Civil War. In the battles of Montello, Vittorio Veneto, Sisemolet, Piave, Cimone, Monte Grappa, Nervesa and Ponte Delle Alpi as part of the Italian Army against Austria-Hungary and in 1919 as part of the Romanian Army in the Hungarian-Romanian War. In the late spring of 1918, three new states were formed in the South Caucasus: the First Republic of Armenia, the Azerbaijan Democratic Republic, and the Democratic Republic of Georgia, which declared their independence from the Russian Empire. Two other minor entities were established, the Centrocaspian Dictatorship and South West Caucasian Republic (the former was liquidated by Azerbaijan in the autumn of 1918 and the latter by a joint Armenian-British task force in early 1919). With the withdrawal of the Russian armies from the Caucasus front in the winter of 1917–18, the three major republics braced for an imminent Ottoman advance, which commenced in the early months of 1918. Solidarity was briefly maintained when the Transcaucasian Federative Republic was created in the spring of 1918, but this collapsed in May when the Georgians asked for and received protection