Subjects of the USSR

The subjects of the Soviet Union (Russian: субъекты СССР, subj̈ektı SSSR), colloquially known as union subjects (субъекты союза, subj̈ektı soyuza, lit. "subjects of the union") are the top-level constituent entities within the Union of Soviet Sovereign Republics. The Soviet Union currently comprises of 17 union subjects, which includes 15 union republics (союзные республики, soyuznıe respubliki) and two union cities (города союзного значения, goroda soyuznogo značeniya; lit. "cities of union significance").