sentences:  The SSR Abkhazia was largely similar to an autonomous Soviet republic, though it retained nominal independence from Georgia, being given certain features only full union republics had, like its own military units.Through its status as a "treaty republic" with Georgia, Abkhazia joined the Transcaucasian Soviet Federative Socialist Republic, which united Armenian, Azerbaijani, and Georgian SSRs into one federal unit, when the latter was formed in 1922.The SSR Abkhazia was abolished in 1931 and replaced with the Abkhaz Autonomous Soviet Socialist Republic within the Georgian SSR.