Autonomous republics of the Soviet Union in the context of "Mountain Autonomous Socialist Soviet Republic"

The Adjarian Autonomous Soviet Socialist Republic (Adjarian ASSR or Adzhar ASSR; Georgian: აჭარის ავტონომიური საბჭოთა სოციალისტური რესპუბლიკა, romanized: ach'aris avt'onomiuri sabch'ota sotsialist'uri resp'ublik'a; Russian: Аджарская Автономная Советская Социалистическая Республика, romanized: Adzharskaya Avtonomnaya Sovetskaya Sotsialisticheskaya Respublika) was an autonomous republic of the Soviet Union within the Georgian SSR, established on 16 July 1921. On 10 December 1990, it was renamed into the Autonomous Republic of Adjara. After the dissolution of the Soviet Union in 1991, it became part of the independent Georgia.

When the Soviet Union existed, different governments had ruled the northern Caucasus regions of Chechnya and Ingushetia. Within the Mountain Autonomous Socialist Soviet Republic, later annexed into the Russian Socialist Federative Soviet Republic, they were known as the Chechen Autonomous Oblast and the Ingush Autonomous Oblast, which were unified on January 15, 1934, to form the Checheno-Ingush Autonomous Oblast. It was elevated to an autonomous republic as the Checheno-Ingush Autonomous Soviet Socialist Republic from 1936 to 1944 and again from 1957 to 1993. Its capital was Grozny.

However, because of alleged collaboration with Nazi Germany and the Axis powers during World War II, the autonomous republic was abolished on 7 March 1944 resulting the ethnic cleansing of the Chechens and Ingush from its territory. The autonomous republic's status was restored in January 1957. The 1979 census reported the territory had an area of 19,300 square kilometres (7,500 sq mi) and a population of 1,155,805 (1979 Census): 611,405 Chechens, 134,744 Ingush, and the rest were Russians and other ethnic groups.

The electoral system of the Union of Soviet Socialist Republics was varying over time, being based upon Chapter XIII of the provisional Fundamental Law of 1922, articles 9 and 10 of the 1924 Constitution and Chapter XI of the 1936 Constitution, with the electoral laws enacted in conformity with those. The Constitution and laws applied to elections in all Soviets, from the Supreme Soviet of the Soviet Union, the Union republics and autonomous republics, through to regions, districts and towns. Voting was claimed to be secret and direct with universal suffrage. However, in practice, between 1936 and 1989, voters could vote against candidates preselected by the Communist Party only by spoiling their ballots, or by voting against the only candidate, whereas votes for the party candidates could be cast simply by submitting a blank ballot. A person would be given a ballot by a clerk, and could immediately walk to the ballot box, and while there were booths in which one could strike the candidates they voted against off the ballot, this was easy to record and was not commonly done by voters.

A 1945 decree allowed for members of the Red Army stationed outside the Soviet Union to vote for both chambers of the Supreme Soviet of the USSR (the Soviet of the Union and Soviet of Nationalities) in special 100,000-member districts. These were first enacted in the 1946 legislative elections and continued through the next decades as the Red Army continued its presence in the Eastern Bloc.

The Tuvan Autonomous Soviet Socialist Republic (Russian: Тувинская Автономная Советская Социалистическая Республика; Tuvan: Тыва Автономнуг Совет Социалистиг Республика), or the Tuvan ASSR (Russian: Тувинская АССР; Tuvan: Тыва АССР), was an autonomous republic of the Russian SFSR. It was created on 10 October 1961 from the Tuvan Autonomous Oblast. Its territory measured 175,000 square kilometers and bordered Mongolia to the south, Buryat ASSR to the east, Gorno-Altai Autonomous Oblast to the west and Khakas Autonomous Oblast to the north.