Dushanbe of April 2015, had regularly scheduled flights to major cities in Russia, Central Asia, as well as Delhi, Dubai, Frankfurt, Istanbul, Kabul, and Ürümqi amongst others. Tajikistan's principal railways are in the southern region and connect Dushanbe with the industrial areas of the Gissar and Vakhsh valleys and with Uzbekistan, Turkmenistan, Kazakhstan and Russia. The Dushanbe trolleybus system operates public buses in the city. Automobiles are the main form of transportation in the country and many highway and tunnel construction projects are underway or have recently been completed. Major projects include rehabilitation of the Dushanbe – Chanak (Uzbek border), Dushanbe
Soviet republic (system of government) republics were short-lived communist revolutionary governments that were established in what had been the Russian Empire after the October Revolution and under its influence. These states included some such as the Lithuanian Soviet Socialist Republic and the Latvian Socialist Soviet Republic which won independence from Russia during the civil war period. Others such as the Ukrainian Soviet Republic and the Socialist Soviet Republic of Byelorussia later became union republics of the Soviet Union and are now independent states. Still others such as the Kuban Soviet Republic and the Bukharan People's Soviet Republic were absorbed into other polities and no longer