sentences:  On 13 December 1922, while united with Georgia, Abkhazia joined the Transcaucasian Socialist Federative Soviet Republic (TSFSR), along with Armenia and Azerbaijan.This new federation was created ostensibly for economic purposes, but was more likely done to consolidate Soviet control over the region, which had been contentious.Abkhazia was mostly treated as an autonomous region of Georgia, though unlike other autonomous states in the Soviet Union, it had its own national symbols—a flag and coat of arms—and national army units, a right only given to full republics.