Transnistria, officially the Pridnestrovian Moldavian Republic, and also called Transdniester, Trans-Dniestr, Transdniestria, or Pridnestrovie, is a landlocked self-proclaimed state situated between Ukraine and the River Dniester, recognised only by three other non-United Nations states: Abkhazia, Nagorno-Karabakh and South Ossetia. The region is considered by the UN to be part of Moldova. The PMR controls a narrow strip of territory to the east of the River Dniester, and also the city of Bender and its surrounding localities on the west bank, in the historical region of Bessarabia.Unrecognised by any United Nations member state, Transnistria is designated by the Republic of Moldova as the Transnistria autonomous territorial unit with special legal status, or Stînga Nistrului .After the dissolution of the USSR, tensions between Moldova and the breakaway Transnistrian territory escalated into a military conflict that started in March 1992 and was concluded by a ceasefire in July of the same year. As part of that agreement, a three-party Joint Control Commission supervises the security arrangements in the demilitarised zone, comprising twenty localities on both sides of the river. Although the ceasefire has held, the territory's political status remains unresolved: Transnistria is an unrecognised but de facto independent semi-presidential republic with its own government, parliament, military, police, postal system, currency and vehicle registration. Its authorities have adopted a constitution, flag, national anthem, and coat of arms. It is the only country still using the hammer and sickle on its flag.