An Unyans a Repoblegow Socyalydh Sovyetek (URSS) o a-dhia 1922 bys 1991. Russi, Estoni, Letoni, Lithywani, Belarous, Ukrayn, Moldova, Pow Grousi, Aserbayjan; Kasaghstan, Kyrgysstan, Ousbekistan, Turkmenistan an Tajikistan o repoblek y'n URSS. Moskva o pennsita an unyans.