Moldova is a country in Eastern Europe. Its official name is the Republic of Moldova (Romanian: Republica Moldova). It is bounded to the west by Romania and to the north, east, and south by Ukraine. Transnistria, an unrecognized breakaway entity, sits across the Dniester on the country's eastern border with Ukraine. Chișinău is Moldova's capital and biggest city.
From the 14th century until 1812, the majority of Moldovan land was part of the Principality of Moldavia, which was surrendered to the Russian Empire by the Ottoman Empire (of which Moldavia was a tributary state) and became known as Bessarabia. Southern Bessarabia was returned to Moldavia in 1856, and three years later it merged with Wallachia to become Romania, but Russian sovereignty was reestablished over the whole province in 1878. Bessarabia temporarily became an independent state inside the Russian Republic during the 1917 Russian Revolution, known as the Moldavian Democratic Republic. The Moldavian Democratic Republic proclaimed independence in February 1918, and later that year, its congress voted to merge it into Romania. The decision was contested by Soviet Russia, which formed a Moldavian autonomous republic (MASSR) inside the Ukrainian SSR in 1924 on largely Moldovan-inhabited regions to the east of Bessarabia.
As a result of the Molotov–Ribbentrop Pact, Romania was forced to hand over Bessarabia and Northern Bukovina to the Soviet Union in 1940, resulting in the establishment of the Moldavian Soviet Socialist Republic (Moldavian SSR), which included the majority of Bessarabia and the westernmost strip of the former MASSR (east of the Dniester River). On August 27, 1991, while the Soviet Union was disintegrating, the Moldavian SSR proclaimed independence and adopted the name Moldova. Moldova's constitution was enacted in 1994. Since 1990, a stretch of Moldovan territory on the Dniester's east bank has been de facto controlled by Transnistria's breakaway government.
Because of a drop in industrial and agricultural production after the fall of the Soviet Union, the service sector has risen to dominate Moldova's economy, accounting for more than 60% of the country's GDP. It is Europe's poorest nation in terms of GDP per capita, behind only Ukraine. Moldova has the continent's lowest Human Development Index, ranking 90th in the world.
Moldova is a parliamentary republic led by a president who serves as head of state and a prime minister who serves as head of government. It is a member of the United Nations, the Council of Europe, the World Trade Organization (WTO), the Organization for Security and Cooperation in Europe (OSCE), the GUAM Organization for Democracy and Economic Development, the Commonwealth of Independent States (CIS), the Black Sea Economic Cooperation Organization (BSEC), and the Association Trio.