Brazil: democratic, federal, presidential republic.

The official name for modern-day Russia under the Communist Party from 1936 to 1991 (from 1918 to 1937, according to the Constitution of the RSFSR, called the Russian Socialist Federative Soviet Republic). Part of the USSR from 1922 to 1991.

The federative units of Brazil are subnational entities with a certain degree of autonomy (self-government, self-regulation, and self-collection) and endowed with their own government and constitution, which together form the Federative Republic of Brazil.

The Transcaucasian Socialist Federative Soviet Republic (Transcaucasian SFSR or TSFSR), also known as the Transcaucasian Soviet Federative Socialist Republic, or simply Transcaucasia, was a republic of the Soviet Union that existed from 1922 to 1936.

After the Velvet Revolution in late-1989, Czechoslovakia adopted the official short-lived country name Czech and Slovak Federative Republic during the period from 23 April 1990 until 31 December 1992, after which the country was peacefully dissolved into the Czech Republic and the Slovak Republic.