The political status of Transnistria, an unrecognized state on the internationally recognized territory of Moldova, has been disputed since the Transnistrian declaration of independence on September 2, 1990. This declaration sought to establish a Soviet Socialist Republic separate from the Moldavian SSR, while still part of the Soviet Union. Following the breakup of the Soviet Union and Moldova's own declaration of independence in 1991, the PMSSR was transformed into the Pridnestrovian Moldavian Republic (PMR), commonly referred to as Transnistria. No United Nations member country recognizes the PMR's bid to sovereignty.